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HomeMy WebLinkAboutWS-4653_15063_CA_MRP_20210601 Groundwater Monitoring Report Williams Grocery 2425 US Highway 21 Hamptonville, Yadkin County, North Carolina NCDEQ Incident #15063 ATC Project #SLC1506301 June 1, 2021 Groundwater Monitoring Report June 1, 2021 Williams Grocery, Hamptonville, Yadkin Co, NC, NCDEQ Incident #15063 ATC Project #SLC1506301 TABLE OF CONTENTS 1.0 SITE IDENTIFICATION ............................................................................... 1 2.0 EXECUTIVE SUMMARY ............................................................................. 2 3.0 SITE DESCRIPTION .................................................................................. 3 3.1 Site Characterization .................................................................... 3 3.2 Site Background ........................................................................... 3 3.3 Site and Regional Geology .......................................................... 5 3.4 Site and Regional Hydrogeology .................................................. 5 4.0 MOBILE MULTIPHASE EXTRACTION EVENT ......................................... 6 4.1 MMPE Event March 15 – 17, 2021 .............................................. 6 5.0 GROUNDWATER CHARACTERIZATION .................................................. 7 5.1 Water Supply Wells ...................................................................... 7 5.2 Groundwater Levels ..................................................................... 8 5.3 Groundwater Quality .................................................................... 8 6.0 CONCLUSIONS AND RECOMMENDATIONS ........................................... 9 TABLES Table 1 Groundwater Elevation Data Table 2 Water Supply Well Information Table 3 Recent Water Supply Well Analytical Results Table 4 Historical Water Supply Well Analytical Results Table 5 Monitoring Well Construction Details Table 6 Field Parameters Table 7 Recent Groundwater Analytical Results Table 8 Historical Groundwater Analytical Results FIGURES Figure 1 Site Location Map Figure 2 Site Map Figure 3 Water Supply Well Location Map Figure 4 Groundwater Elevation Contour Map Figure 5 Contaminants of Concern APPENDICES Appendix A MMPE Subcontractor Report and Waste Disposal Manifest Appendix B Field Notes Appendix C Laboratory Report and Chain-of-Custody Documentation Appendix D Health Risk Evaluation (WSW-6) Groundwater Monitoring Report June 1, 2021 Williams Grocery, Hamptonville, Yadkin Co, NC, NCDEQ Incident #15063 ATC Project #SLC1506301 2 2.0 EXECUTIVE SUMMARY ATC Associates of North Carolina, P.C. (ATC) submits this Groundwater Monitoring Report documenting a 96-hour MMPE event and associated monitoring well and water supply well sampling in March and April 2021. The activities are associated with the Williams Grocery site, located at 2425 US Highway 21, Hamptonville, Yadkin County, North Carolina. The work was performed based on the February 25, 2021, Task Authorization (TA-01) by the Trust Fund Branch of the Underground Storage Tank (UST) Section, Division of Waste Management, North Carolina Department of Environmental Quality (NCDEQ). The work is being performed as part of the State Lead Contract #N122019A between NCDEQ and ATC. A release was discovered in February 1994, from the UST system during removal of a 2,000- gallon gasoline UST and a 500-gallon kerosene UST. Three 550-gallon gasoline USTs were filled in-place with concrete, and were later removed. The approved scope of services included conducting a combined Mobile Multi-Phase Extraction (MMPE) / Air Sparging (AS) event and the sampling of monitoring/remediation wells MW-1, MW-3, MW-5, MW-12, RW-1, and AS-1, and water supply wells WSW-1, WSW-2, WSW-3, WSW-4, WSW-5, WSW-6, and WSW-7, and the measurement of water levels in wells MW-2, MW-4, and MW-6. All monitoring/remediation wells and water supply wells WSW-1, WSW-2, WSW-6, and WSW-7 were sampled; however, water supply wells WSW-3, WSW-4, and WSW- 5 were not sampled due to absent owners. The following summarizes the site conditions based on the recent and historical assessment activities:  There are no surface water bodies within 500 feet of the source area.  Eleven active drinking water supply wells are located within 1,000 feet of the source area, with one well (WSW-1) located within 250 feet of the source area. Municipal water is not available to the site and surrounding area. Based on the groundwater flow direction, ATC considers water supply wells WSW-1 and WSW-3 to be the most “at risk” wells.  During March 15 to 19, 2021, a 96-hour combined Mobile Multi-Phase Extraction (MMPE) / Air Sparging (AS) event was conducted using MW-1, MW-3, and RW-1 as extraction wells and well AS-1 as an AS well. Light non-aqueous phase liquid (LNAPL) was not detected in the target wells prior to, immediately after or 20 minutes after the MMPE event, although the initial water levels in wells MW-1 and MW-3 were above the top of well screens. Approximately 9,580 gallons of total fluid and 288 pounds of volatile organic compounds (VOCs) as vapor were removed during the MMPE event.  Approximately 9,865 pounds of petroleum as vapor have been recovered over time at this site.  Water supply wells WSW-1, WSW-2, WSW-6, and WSW-7 were sampled on April 2, 2021. Water supply well WSW-6 contained VOCs at concentrations less than the 15A NCAC 2L .0202 groundwater quality standards (2L Standards). No VOCs were detected in WSW-1, WSW-2, or WSW-7.  Health Risk Evaluation conducted by the NCDEQ for water supply well WSW-6 indicated no restrictions of the use of the water at this time.  Groundwater samples were obtained prior to the MMPE (March 15, 2021), during the MMPE (March 17, 2021), and 2 weeks after the MMPE event (April 2, 2021). Groundwater Monitoring Report June 1, 2021 Williams Grocery, Hamptonville, Yadkin Co, NC, NCDEQ Incident #15063 ATC Project #SLC1506301 3  LNAPL was detected in RW-1 at a thickness of 0.03 feet during the April 2, 2021 sampling subsequent to the MMPE event. The concentrations of VOCs in monitoring wells MW-1 and MW-3 suggest residual LNAPL is present.  Gross Contamination Levels (GCLs) were exceeded in wells MW-1, MW-3, and RW-1.  Additional VOCs were detected in monitoring wells MW-1, MW-2, MW-3, MW-5, and AS-1 at concentrations exceeding the 2L Standards.  No VOCs were detected in well MW-12.  The depth to groundwater in the shallow wells ranged from 15.80 feet below top of casing (ft-toc) in MW-6 to 19.38 in well RW-1. Groundwater flow is generally to the east-southeast, with mounding at well MW-2.  Due to seasonal rainfall well screens were submerged during this sampling event. Based on recent and historical monitoring well sampling results, the horizontal extent of the VOC plume is defined with the exception of the upgradient direction to the north and northwest. The greatest concentrations of VOCs were detected in monitoring wells MW-1, MW-3, and RW- 1, with exceedances of the GCLs, and the concentrations appear to be relatively stable, with several VOCs increasing in concentrations following the MMPE/AS event. The April 2, 2021 groundwater sampling results indicate that the combined MMPE/AS event was not effective in reducing VOC concentrations; however, the event was successful in removing VOCs from the subsurface. ATC recommends a sampling event to include MW-1, MW-3, MW-5 and RW-1 in approximately six months to evaluate the possible long term effectiveness of the MMPE/AS event, followed by an evaluation of possible alternative remediation efforts. 3.0 SITE DESCRIPTION 3.1 Site Characterization The NCDEQ retained ATC to provide environmental consulting services for Williams Grocery, located at 2425 US Highway 21, Hamptonville, Yadkin County, North Carolina. Figure 1 depicts the site location on a topographic map. The former Williams Grocery building was demolished several years ago, and the residence located southeast of the former UST system was demolished in early 2017. There are two apartments located on the property, to the southwest of the former Williams Grocery building. 3.2 Site Background The site formerly utilized a UST system consisting of one (1) 2,000-gallon gasoline UST, three (3) 550-gallon gasoline USTs, and one (1) 550-gallon kerosene UST. The 2,000-gallon gasoline UST and the 550-gallon kerosene UST were removed in February, 1994. The three 550-gallon gasoline USTs were initially closed in place due to stability of nearby foundations. Closure sampling was performed during tank closure activities. Total petroleum hydrocarbon (TPH) concentrations ranged from 42 parts per million (ppm) to 22,115 ppm as gasoline range organics (GRO) and from 2,982 ppm to 14,284 ppm as diesel range organics (DRO). Groundwater monitoring wells MW-1 through MW-3 were installed and sampled in November, 1996. The locations of the monitoring wells are depicted on Figure 2. LNAPL was detected in monitoring wells MW-1 and MW-3 during initial sampling. VOCs were detected in monitoring well MW-2 at concentrations that exceeded the 2L Standards. Groundwater Monitoring Report June 1, 2021 Williams Grocery, Hamptonville, Yadkin Co, NC, NCDEQ Incident #15063 ATC Project #SLC1506301 4 The three USTs that were filled with concrete were removed in February 1997. During excavation activities, 144 tons of petroleum impacted soils were removed. Vertical and horizontal extent sampling detected concentrations ranging from 2,500 ppm to 13,000 ppm TPH GRO. Monitoring wells MW-4 through MW-11 were installed and sampled in April 1998. Initial sampling indicated concentrations above the 2L Standards in monitoring wells MW-4, MW-5, MW-8, and MW-9. Monitoring well RW-1 was installed in June 2014 in the source area. Initial sampling of well RW- 1 showed concentrations of benzene, MTBE, and ethylene dibromide (EDB) above the 2L Standards and GCLs. Eleven additional compounds were detected above the 2L Standards in the well. A Groundwater Monitoring Report completed by TerraQuest in June 2012, identified eleven potable water supply wells within 1,000 feet of the site. According to prior reports, a Point-of- Entry (POE) filtration system was installed on water supply well WSW-1. Subsequent groundwater monitoring events have been performed at the site. Monitoring wells MW-7 through MW-11 could not be located for multiple sampling events. The groundwater monitoring event, performed in 2015, detected LNAPL in monitoring wells MW-3 and RW-1. Concentrations of benzene, MTBE, and EDB were detected above the GCLs in monitoring well MW-1. VOC concentrations exceeded the 2L Standards in monitoring well MW-2. According to a Groundwater Monitoring Report completed by S&ME, approximately 18 aggressive fluid vapor recovery (AFVR) events were completed at the site from June 1997, through November 1998. According to prior reports provided to ATC, approximately four MMPE events were performed at the site from July 2001 through August 2004. An MMPE event was also completed at the site as part of S&ME’s 2016 field activities from June 24, 2016, to June 24, 2016. According to data from the Groundwater Monitoring Report, the five MMPE events generated 2,068 gallons of hydrocarbons as LNAPL and as vapors. ATC conducted groundwater monitoring in November, 2017. VOC concentrations exceeded the GCLs in wells MW-1 and MW-3. VOCs also exceed the 2L Standards in wells MW-1, MW-2, MW-3, and RW-1. From May 6, 2019 to May 10, 2019, a 96-hour MMPE was performed at the site using monitoring wells MW-1, MW-3, and recovery well RW-1 as extraction wells, while sparging in well AS-1. Prior to the MMPE event, groundwater samples were collected from wells MW-1, MW-3, and recovery well RW-1 to serve as comparison for post-MMPE sampling. Based on the calculations from the MMPE event, it appears that the MMPE was somewhat effective in mass removal of petroleum hydrocarbons (approximately 270 pounds of VOCs removed). However, only slight reductions in VOC concentrations were realized and VOC concentrations in the monitoring well network continue to exceed GCLs. ATC recommended additional MMPE events with air sparging to continue to remove mass from the monitoring well network. ATC installed one Type II groundwater monitoring well, MW-12, to the southeast of MW-1 to evaluate the horizontal extent of petroleum impact, on February 12, 2020. On February 12, 2020, ATC collected samples from water supply wells WSW-1, WSW-2, WSW-5, WSW-7, and WSW-9. Water supply well WSW-7 contained toluene (9.3 µg/L) at a concentrations below the 2L Standard of 600 µg/L. No other compounds were detected in WSW-7. Based on the WSW-7 Groundwater Monitoring Report June 1, 2021 Williams Grocery, Hamptonville, Yadkin Co, NC, NCDEQ Incident #15063 ATC Project #SLC1506301 5 results, the NCDEQ issued a Health Risk Evaluation stating “no restrictions on the use of this water are recommended at this time.” Groundwater samples were collected on February 13, 2020, from wells MW-1, MW-2, MW-3, MW- 4, MW-5 MW-6, MW-12 and recovery well RW-1. Monitoring well MW-1 multiple VOCs (benzene, MTBE, EDB, 1,2-DCA, TAA, and TBA) above the GCLs. Monitoring well MW-3 contained benzene and EDB above the GCLs. Additional VOCs were detected in monitoring wells MW-1, MW-2, MW- 3, and MW-5, and recovery well RW-1 at concentrations exceeding the 2L Standards. ATC recommended performing a 96-hour combined MMPE/AS event using MW-1, MW-3 and RW-1 as extraction wells with air-sparging using well AS-1. 3.3 Site and Regional Geology According to the Geologic Map of North Carolina, produced by the State of North Carolina in 1985, the site lies in the Brushy Mountains of the Inner Piedmont Physiographic Province. The rock type at the site has been identified as gneiss. The shallow subsurface in most areas of the Piedmont contains residual soil overburden, including structure-free residuum, saprolite, and partially weathered rock (PWR) that derive from in-place weathering of the crystalline bedrock. In areas near creeks and rivers, alluvium derived from weathered residual soil is often present and such material may be present near drainages at the property. Saprolite and PWR typically contain some relict structures from the original rock material. Depth to rock ranges from ground surface at occasional outcrops to depths greater than 100 feet in areas of easily weathered rock. 3.4 Site and Regional Hydrogeology The shallow aquifer occurrence varies in depth from ground surface at springs, creeks, and rivers to as deep as 50 feet or more beneath upland surfaces in some parts of the Piedmont. Water in the alluvium or unconsolidated residual material, including saprolite and PWR, usually behaves as an unconfined, or water table, aquifer and will yield water with head elevation equivalent to the first elevation where water was encountered. Permeability varies with lithology and is typically relatively low in residual soils, with higher permeability in saprolite or PWR due to relict rock texture and variable susceptibility to weathering exhibited by different minerals in the rock. Groundwater flow in residual soils or alluvium is usually in rough concurrence with local topographic conditions and is toward local drainage features. The bedrock fractures or other planar features generally constitute the bedrock aquifer, with the surrounding rock material being effectively impermeable. Along with fractures, contacts between rock bodies probably constitute zones of significant groundwater occurrence in the bedrock. The surrounding material and overlying residuum tend to make the bedrock aquifer a semi-confined aquifer. That is, the overlying water and soil weight normally results in pressure that causes water in a borehole which intersects a fracture or other feature to rise above the elevation of the fracture or feature. Such features may not occur on predicable trends, at the same elevations, or even be present or directly connected in separate boreholes. In areas adjacent to creeks the bedrock groundwater generally discharges to the residuum or alluvium and then into the surface water. In upland areas away from surface water drainages, the bedrock aquifer is generally recharged by downward infiltration of residuum or alluvial aquifer water at locations where fractures intersect the bedrock surface. For sites in the Piedmont, the direction of groundwater flow in the shallow regolith aquifer is generally from topographic higher elevations (recharge areas) toward topographic lower elevations and non-perched surface water bodies (discharge areas). On April 2, 2021, the depth Groundwater Monitoring Report June 1, 2021 Williams Grocery, Hamptonville, Yadkin Co, NC, NCDEQ Incident #15063 ATC Project #SLC1506301 6 to groundwater in the shallow wells ranged from 15.80 feet below top of casing (ft-toc) in MW-6 to 19.38 in well RW-1. Groundwater flow is generally to the east-southeast, with mounding at well MW-2. 4.0 MOBILE MULTIPHASE EXTRACTION EVENT 4.1 MMPE Event March 15 – 17, 2021 From March 15 to 19, 2021, Advanced Environmental Services, Inc. (Advanced) performed a 96-hour MMPE event. The event was completed using MW-1, MW-3 and RW-1 as extraction wells, while sparging in AS-1 (pulsed 12 hours on and 12 hours off beginning on March 16). ATC personnel provided onsite supervision for event set-up and break-down. Target extraction wells were gauged for liquid levels prior to starting the MMPE event with an electronic oil-water interface probe. No LNAPL was measured in the target wells prior to, immediately after or 20 minutes after the MMPE event. The depth to water and LNAPL are presented in Table 1. During MMPE activities, a liquid ring vacuum pump unit is plumbed to the designated extraction points, and a drop pipe is extended into the well through an airtight seal at the TOC and into the water column. Throughout the MMPE process, a cone of depression forms around the designated recovery points by drawing down the groundwater surface levels, thus causing impacted water surrounding the recovery point to be extracted. Petroleum-impacted soil vapor within the cone of depression and the overlying vadose zone is removed as part of the MMPE extraction process. The 96-hour MMPE event was initiated on March 15, 2021, and ended on March 19, 2021. The effluent air stream was monitored for temperature, velocity, relative humidity, and organic vapor concentrations on a daily basis. Calculated effluent airflow rates and the vapor concentration readings from the vacuum truck indicated that approximately 288 pounds (47 equivalent gallons) of petroleum hydrocarbons were recovered as vapor during the MMPE event. The MMPE event removed approximately 9,580 gallons of total fluids. A report provided by Advanced which includes monitoring data, emissions and recovery calculations, and waste disposal manifests, is provided in Appendix A. ATC field notes from the MMPE set-up and break-down supervision are presented in Appendix B. The following summarizes the emissions reported in pounds from the previous 8-hour AFVR and 96-hour MMPE events. Event Date(s) Type VOC Emissions pounds pounds/hr 6/12/97- 11/20/98 (18 events) AFVR 6,898 47.9 6/8/16 AFVR 51 50.5 7/24-28/01 MMPE 865 9.0 1/21-25/02 MMPE 50 0.5 6/20-24/16 MMPE 1,445 15.1 5/6-10/19 MMPE 269 2.8 3/15-19/21 MMPE 288 3.0 Total 9,865 Groundwater Monitoring Report June 1, 2021 Williams Grocery, Hamptonville, Yadkin Co, NC, NCDEQ Incident #15063 ATC Project #SLC1506301 7 5.0 GROUNDWATER CHARACTERIZATION 5.1 Water Supply Wells Eleven water supply wells have been previously identified within 1,000 feet from the site. Figure 3 depicts the location of the water supply wells on an aerial overlay. Table 2 summarizes water supply well information. Based on the distances from the source area to the water supply wells and the groundwater flow direction, the water supply wells within 500 feet (WSW-1, WSW-2, WSW-3, WSW-5, and WSW-6) are considered the most “at-risk” wells. On April 2, 2021, ATC collected samples from water supply wells located at 2425 US Highway 21 (site/WSW-1), 2508 US Highway 21 (WSW-2), 1717 Hamptonville Road (WSW-6), and 2405 US Highway 21 (WSW-7). The water supply wells located at 1704 Hamptonville Road (WSW-3) and 1708/1712 Hamptonville Road (WSW-5) could not be sampled due to the occupant not being present. Each water supply well sample was collected from outdoor spigots after purging for approximately fifteen minutes. Field notes from the April 2, 2021 sampling event are presented in Appendix B. The water samples were collected in laboratory-supplied, preserved containers; entered into chain of custody control; placed on ice; and shipped to North Carolina accredited Pace Analytical Services, LLC (Pace), in Huntersville, North Carolina, for laboratory analysis. The samples were analyzed using Standard Method (SM) 6200B with ethanol and oxygenates, and EPA Method 501.4 for EDB. A copy of the laboratory report is included in Appendix C. Analytical results from supply well sampling indicate the following:  Water supply well WSW-6 contained bromodichloromethane (1.0 µg/L), chloroform (5.4 µg/L), dibromocholoromethane (0.42J µg/L) and toluene (2.5 µg/L) at concentrations below the 2L Standards for the respective compounds. No other VOCs were detected in WSW-6; and  No VOCs were detected in WSW-1, WSW-2, or WSW-7. Due to the detection of VOCs in water supply well WSW-6, the NCDEQ conducted a Health Risk Evaluation. The April 15, 2021 HRE stated that “None of the contaminants detected exceeded the applicable water standards. Therefore, no restrictions of the use of the water are recommended at this time.” The HRE is included in Appendix D. Table 3 summarizes current water-supply well analytical results, and Table 4 summarizes historical water supply well analytical results. As part of ATC’s quality assurance and quality control (QA and QC) measures, a data review of the laboratory reports was conducted. During the review, it was found that the samples were received from the laboratory in acceptable condition and properly preserved. The samples were analyzed within correct holding times and reported within the lab report, and the chain of custody was properly completed by all parties. The laboratory QC report shows that an internal blank was analyzed for each method that was used for the original samples. The laboratory fortified blank (LFB) and laboratory control sample (LCS) data results were also provided for each analytical method. VOCs were not detected in the field blank or trip blank. Refer to the laboratory reports in Appendix C for details regarding QA results for the laboratory samples and any noted exceptions. Overall, ATC concludes that the laboratory results are usable and any exceptions do not significantly impact the conclusions presented in this report. Groundwater Monitoring Report June 1, 2021 Williams Grocery, Hamptonville, Yadkin Co, NC, NCDEQ Incident #15063 ATC Project #SLC1506301 8 5.2 Groundwater Levels On March 15, 2021 and March 17, 2021, ATC measured the water levels in wells MW-1, MW-3, and RW-3. ATC also measured the depth to water in the site monitoring/remediation wells on April 2, 2021. LNAPL was not detected in the wells, except for 0.03 feet in well RW-1 on April 2, 2021. Figure 2 depicts a site map with the monitoring well locations. Monitoring well construction details are included in Table 5. An oil/water interface probe was used to measure the depth to groundwater from the top of well casing (TOC) in each well. Depth to groundwater and water level elevation data are summarized in Table 1. Note that the groundwater levels were above the top of well screens in the shallow monitoring wells. LNAPL (0.03 feet) was detected in well RW-1 on April 2, 2021. Based on depths to groundwater measured on April 2, 2021, the groundwater surface appears to be mounded at the location of the former Williams Grocery building, with groundwater flow primarily to the east and southeast. Due to unseasonal high rainfall during the fall and winter of 2020, groundwater levels in the monitoring wells were above the well screens during this sampling event. Figure 4 depicts a groundwater elevation contour map based on the April 2, 2021 data. Field notes from the March 13, March 17, and April 2, 2021, groundwater monitoring event are presented in Appendix B. 5.3 Groundwater Quality ATC sampled wells MW-1, MW-3, and RW-1 on March 15, 2021 prior to the MMPE event, and on March 17, 2021 after removing approximately 5,000 gallons of groundwater. On April 2, 2021, ATC sampled wells MW-1, MW-3, MW-5, MW-12, and AS-1. During sampling activities, a three-volume well purge was implemented prior to groundwater sample collection to ensure collection of representative groundwater samples. Field notes of the sampling events are included in Appendix B. The groundwater samples were collected in laboratory-supplied, preserved containers; entered into chain of custody control; placed on ice; and shipped to Pace for analysis by SM 6200B including ethanol and oxygenates. A copy of the laboratory report is included in Appendix C. Groundwater field parameters including temperature, dissolved oxygen, conductivity, pH, and oxidation reduction potential were measured during the monitoring event. Field parameter readings for each well are presented in Table 6. Low dissolved oxygen levels [1.3 milligrams per liter (mg/L) or less] in wells MW-1 and MW-3 are indicative of biological degradation of the VOCs. Well MW-5 with low concentrations of VOCs, had the highest DO concentration of 7.5 mg/L. The other field parameters are not significantly different to make any conclusions. Current and historical groundwater analytical results are summarized in Table 7 and Table 8, respectively. The groundwater analytical results were compared to the 2L Standards and GCLs. Groundwater analytical results indicated the following:  The GCLs were exceeded in well MW-1 (benzene, EDB, 1,2-DCA, and tert-butyl alcohol (TBA), and wells MW-3 and RW-1 (benzene and EDB), prior to the MMPE event.  GCLs were exceeded in well RW-1 (benzene and EDB), at the approximate mid-point of the MMPE event.  GCLs were exceeded in well MW-1 (benzene, EDB, 1,2-DCA, and TBA), and well MW-3 (benzene and EDB), after the MMPE event. Groundwater Monitoring Report June 1, 2021 Williams Grocery, Hamptonville, Yadkin Co, NC, NCDEQ Incident #15063 ATC Project #SLC1506301 9  Additional VOCs were detected in wells MW-1, MW-2, MW-3, MW-5, and AS-1 at concentrations exceeding the 2L Standards.  No VOCs were detected in well MW-12. Figure 5 depicts VOC concentrations that exceeded the 2L Standards. Based on recent and historical monitoring well sampling results, the horizontal extent of the VOC plume is defined with the exception of the upgradient direction to the north and northwest. The greatest concentrations of volatile organic compounds (VOCs) were detected in monitoring wells MW-1, MW-3, and RW-1, with exceedances of the GCLs. The VOC concentrations appear to be relatively stable, with several VOCs increasing in concentrations following the MMPE/AS event. The April 2, 2021 sampling results indicate that the combined MMPE/AS event was not effective in reducing VOC concentrations. The QA and QC measures and conditions applicable to the water supply well monitoring, as discussed in Section 5.1, also apply to the monitoring well sampling. 6.0 CONCLUSIONS AND RECOMMENDATIONS On behalf of the Trust Fund Branch of the UST Section, ATC has completed a GMR documenting the February 12 and 13, well installation and groundwater monitoring event for Williams Grocery, located at 2425 US Highway 21, Hamptonville, Yadkin County, North Carolina. The following summarizes the site conditions based on the recent and historical assessment activities:  There are no surface water bodies within 500 feet of the source area.  Eleven active drinking water supply wells are located within 1,000 feet of the source area, with one well (WSW-1) located within 250 feet of the source area. Municipal water is not available to the site and surrounding area. Based on the groundwater flow direction, ATC considers water supply wells WSW-1 and WSW-3 to be the most “at risk” wells.  During March 15 to 19, 2021, a 96-hour combined MMPE/AS event was conducted using MW-1, MW-3, and RW-1 as extraction wells and well AS-1 as an AS well. LNAPL was not detected in the target wells prior to, immediately after or 20 minutes after the MMPE event, although the initial water levels in wells MW-1 and MW-3 were above the top of well screens. Approximately 9,580 gallons of total fluid and 288 pounds of VOCs as vapor were removed during the MMPE event.  Approximately 9,865 pounds of petroleum as vapor have been recovered over time at this site.  Water supply wells WSW-1, WSW-2, WSW-6, and WSW-7 were sampled on April 2, 2021. Water supply well WSW-6 contained VOCs at concentrations less than the 2L Standards. No VOCs were detected in WSW-1, WSW-2, or WSW-7.  Health Risk Evaluation conducted by the NCDEQ for water supply well WSW-6 indicated no restrictions of the use of the water at this time.  Groundwater samples were obtained prior to the MMPE (March 15, 2021), during the MMPE (March 17, 2021), and 2 weeks after the MMPE event (April 2, 2021).  LNAPL was detected in RW-1 at a thickness of 0.03 feet during the April 2, 2021 sampling subsequent to the MMPE event. The concentrations of VOCs in monitoring wells MW-1 and MW-3 suggest residual LNAPL is present.  GCLs were exceeded in wells MW-1, MW-3, and RW-1.  Additional VOCs were detected in monitoring wells MW-1, MW-2, MW-3, MW-5, and AS-1 at concentrations exceeding the 2L Standards. Groundwater Monitoring Report June 1, 2021 Williams Grocery, Hamptonville, Yadkin Co, NC, NCDEQ Incident #15063 ATC Project #SLC1506301 10  No VOCs were detected in well MW-12.  The depth to groundwater in the shallow wells ranged from 15.80 ft-toc in MW-6 to 19.38 in well RW-1. Groundwater flow is generally to the east-southeast, with mounding at well MW- 2.  Due to seasonal rainfall well screens were submerged during this sampling event. Based on recent and historical monitoring well sampling results, the horizontal extent of the VOC plume is defined with the exception of the upgradient direction to the north and northwest. The greatest concentrations of VOCs were detected in monitoring wells MW-1, MW-3, and RW- 1, with exceedances of the GCLs, and the concentrations appear to be relatively stable, with several VOCs increasing in concentrations following the MMPE/AS event. The April 2, 2021 groundwater sampling results indicate that the combined MMPE/AS event was not effective in reducing VOC concentrations; however, the event was successful in removing VOCs from the subsurface. ATC recommends a sampling event to include MW-1, MW-3, MW-5 and RW-1 in approximately six months to evaluate the possible long term effectiveness of the MMPE/AS event, followed by an evaluation of possible alternative remediation efforts. TABLES Well ID Gauging Date Well Screen Interval (ft-bgs) Depth to Groundwater (ft-toc) Depth to LNAPL (ft-toc) LNAPL Thickness (ft) TOC Elevation (ft) Groundwater Elevation (ft) 9/10/2008 27.87 27.15 0.72 471.57 6/17/2009 NM NM --NM 11/9/2009 26.43 26.08 0.35 472.69 11/30/2009 26.02 ----472.80 6/14/2010 22.86 ----475.96 9/15/2011 25.80 ----473.02 6/13/2012 25.72 25.71 0.01 473.11 2/25/2014 22.28 ----476.54 10/3/2015 25.21 ----473.61 11/7/2017 24.25 ----474.57 5/6/2019 20.34 ----478.48 6/6/2019 20.43 ----478.39 2/12/2020 21.99 ----476.83 3/15/2021 18.80 ----480.02 3/19/2021 20.40 ----478.42 4/2/2021 18.75 ----480.07 9/10/2008 27.83 ----471.44 6/17/2009 27.01 ----472.26 11/30/2009 26.39 ----472.88 6/14/2010 23.04 ----476.23 9/15/2011 26.10 ----473.17 6/13/2012 26.11 ----473.16 2/25/2014 22.47 ----476.80 10/3/2015 25.61 ----473.66 11/7/2017 24.75 ----474.52 6/6/2019 20.65 ----478.62 2/12/2020 22.45 ----476.82 4/2/2021 18.80 ----480.47 9/10/2008 28.06 27.72 0.34 471.05 6/17/2009 27.15 ----472.32 11/30/2009 26.45 ----473.02 6/14/2010 23.37 ----476.10 9/15/2011 26.22 ----473.25 6/13/2012 26.26 26.25 0.01 472.57 2/25/2014 22.78 ----476.69 10/3/2015 25.84 ----473.63 11/7/2017 24.66 ----474.81 5/6/2019 20.92 ----478.55 6/6/2019 20.98 ----478.49 2/12/2020 22.62 ----476.85 3/15/2021 19.41 ----480.06 3/19/2021 20.40 ----479.07 4/2/2021 19.33 ----480.14 9/10/2008 27.87 ----471.58 6/17/2009 27.32 ----472.13 11/30/2009 26.66 ----472.79 6/14/2010 23.33 ----476.12 9/15/2011 26.41 ----473.04 6/13/2012 26.52 ----472.93 10/3/2015 25.90 ----473.55 11/7/2017 25.12 ----474.33 6/6/2019 20.95 ----478.50 2/12/2020 23.01 ----476.44 4/2/2021 19.23 ----480.22 23-33 498.82 MW-3 23-33 499.47 MW-2 20-30 499.27 MW-1 MW-4 24-34 499.45 NCDEQ INCIDENT #15063 TABLE 1 GROUNDWATER ELEVATION DATA WILLIAMS GROCERY 2425 US HIGHWAY 21 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA Page 1 of 2 Well ID Gauging Date Well Screen Interval (ft-bgs) Depth to Groundwater (ft-toc) Depth to LNAPL (ft-toc) LNAPL Thickness (ft) TOC Elevation (ft) Groundwater Elevation (ft) NCDEQ INCIDENT #15063 TABLE 1 GROUNDWATER ELEVATION DATA WILLIAMS GROCERY 2425 US HIGHWAY 21 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA 9/10/2008 24.43 ----473.91 6/17/2009 26.54 ----471.80 11/30/2009 26.03 ----472.31 6/14/2010 23.20 ----475.14 9/15/2011 26.06 ----472.28 6/13/2012 25.71 ----472.63 2/25/2014 22.54 ----475.80 10/3/2015 25.49 ----472.85 11/7/2017 24.22 ----474.12 6/6/2019 20.93 ----477.41 2/12/2020 22.13 ----476.21 4/2/2021 19.10 ----479.24 9/10/2008 NM ----NM 6/17/2009 23.20 ----472.19 11/30/2009 26.20 ----469.19 6/14/2010 NM ----NM 9/15/2011 NM ----NM 6/13/2012 22.40 ----472.99 2/25/2014 19.24 ----476.15 10/3/2015 22.15 ----473.24 11/7/2017 20.91 ----474.48 6/6/2019 17.87 ----477.52 2/12/2020 19.63 ----475.76 4/2/2021 15.30 ----480.09 9/10/2008 NM ----NM 6/17/2009 21.54 ----471.44 11/30/2009 21.10 ----471.88 6/14/2010 18.66 ----474.32 9/15/2011 NM ----NM 6/13/2012 NM ----NM 2/25/2014 NM ----NM 10/3/2015 NM ----NM 11/7/2017 NM ----NM 6/6/2019 NM ----NM 2/12/2020 NM 2/12/2020 21.01 ----475.84 4/2/2021 17.36 ----479.49 9/10/2008 27.64 27.26 0.38 472.07 6/17/2009 NM NM --NM 11/9/2009 26.64 26.58 0.06 472.79 11/30/2009 26.47 26.45 0.02 472.93 6/14/2010 23.39 ----475.99 9/15/2011 26.39 26.21 0.18 473.14 6/13/2012 26.23 26.20 0.03 473.18 2/25/2014 22.75 ----476.63 10/3/2015 25.72 ----473.66 11/7/2017 24.94 ----474.44 5/6/2019 20.90 ----478.48 6/6/2019 20.96 ----478.42 2/12/2020 22.97 ----476.41 3/15/2021 19.45 ----479.93 3/19/2021 21.10 ----478.28 4/2/2021 19.38 19.35 0.03 480.03 Notes: ft = feet ft-toc = feet below top of casing ft-bgs = feet below ground surface TOC = Top of Casing Groundwater elevation calculated by [Top of Casing Elevation - Depth to Water] + [LNAPL Thickness*0.8581] 24-34 495.39 MW-12 20-35 496.85 Not Located MW-8 22-32 492.98 RW-1 ?-45 499.38 MW-5 24-34 498.34 MW-6 Page 2 of 2 Well ID Well Owners / Well Users Property Address Mailing Address Well Use (P/I/N) Estimated Distance/Direction from Source Area (ft) WSW-1 Derek Shore 2425 US Highway 21 Hamptonville, NC 27020 2424 US Highway 21 Hamptonville, NC 27020 P 105 WSW-2 Sandra Gail Long 2032 Petty Rd Hamptonville, NC 27020 2508 US Highway 21 Hamptonville, NC 27020 P 440 WSW-3 Delma Church (deceased)1704 Hamptonville Road Hamptonville, NC 27020 1704 Hamptonville Road Hamptonville, NC 27020 P 345 WSW-4 Derek Shore 2424 US Highway 21 Hamptonville, NC 27020 2424 US Highway 21 Hamptonville, NC 27020 P 820 WSW-5 Wesley Wall 1708, 1712 Hamptonville Road Hamptonville, NC 27029 PO Box 206 Sullivan Island, SC 29482 P 400 WSW-6 John H. Gardner (deceased)1717 Hamptonville Road Hamptonville, NC 2720 1717 Hamptonville Road Hamptonville, NC 27020 P 300 WSW-7 Terry Windsor 2405 US Highway 21 Hamptonville, NC 27020 4139 Old US Highway 21 Hamptonville, NC 27020 P 630 WSW-8 Jerry Wall 1737 Hamptonville Road Hamptonville, NC 27020 PO Box 509 Hamptonville, NC 27020 P 925 WSW-9 Willis Scowls 2401 US Highway 21 Hamptonville, NC 27020 2401 US Highway 21 Hamptonville, NC 27020 P 740 WSW-10 Olen King 2345 US Highway 21 Hamptonville, NC 27020 2345 US Highway 21 Hamptonville, NC 27020 P 930 WSW-18 Bobby D. Church 2516 US Highway 21 Hamptonville, NC 27020 2516 US Highway 21 Hamptonville, NC 27020 P 690 Notes: NA = Not available or unknown. P / I / N = Potable water supply / Irrigation / Not in use NCDEQ INCIDENT #15063 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA 2425 US HIGHWAY 21 WILLIAMS GROCERY WATER-SUPPLY WELL INFORMATION TABLE 2 Well ID Sample Date BenzeneTolueneEthylbenzeneXylene (Total)Methyl-tert-butyl etherNaphthaleneBromodichloromethaneChloroformDibromochloromethane1 600 600 500 20 6 0.6 70 0.4 WSW-1 04/02/2021 <0.34 <0.48 <0.30 <0.34 <0.42 <0.64 <0.31 <0.35 <0.36 WSW-2 04/02/2021 <0.34 <0.48 <0.30 <0.34 <0.42 <0.64 <0.31 <0.35 <0.36 WSW-3 04/02/2021 Not Sampled - Property Owner Absent WSW-5 04/02/2021 Not Sampled - Property Owner Absent WSW-6 04/02/2021 <0.34 2.5 <0.30 <0.34 <0.42 <0.64 1.0 5.4 0.42J WSW-7 04/02/2021 <0.34 <0.48 <0.30 <0.34 <0.42 <0.64 <0.31 <0.35 <0.36 Notes: "<" = Not Detected at or above the laboratory detection limit. Concentrations are reported in micrograms per liter (µg/L) 2L Standard = 15A NCAC 02L .0202 Groundwater Quality Standard NCDEQ INCIDENT #15063 2L Standard TABLE 3 RECENT WATER SUPPLY WELL ANALYTICAL DATA WILLIAMS GROCERY 2425 US HIGHWAY 21 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA Well ID Sample Date BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthaleneAcetoneBromodichloromethanen-ButylbenzeneChloroformChloromethane1,2-Dibromoethane1,1-Dichloroethane1,2-DichloroethaneDiisopropyl EtherEthanol2-HexanoneIsopropylbenzenep-Isopropyltoluene4-Methyl-2-pentanone (MIBK)Methyl Ethyl Ketonen-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneDibromochloromethane1 600 600 500 20 6 6,000 0.6 70 70 3 0.02 6 0.40 70 4,000 40 70 25 100 4,000 70 70 400 400 0.4 5,000 260,000 84,500 85,500 20,000 6,000 6,000,000 NE 6,900 70,000 3,000 50 6,000 400 70,000 4,000,000 40,000 25,000 11,700 100,000 4,000,000 30,000 70,000 28,500 25,000 400 11/8/1996 ND ND ND ND ND NS ----NS ----ND --NS ND ----NS NS ----NS --NS NS NA 4/14/1998 ND ND ND ND ND NS ----NS ----ND --NS ND ----NS NS ----NS --NS NS NA 6/12/2003 ND ND ND ND <0.5 ND ----NS ----ND --ND NS ----ND ND ----ND --ND ND NA 3/8/2004 ND ND ND ND <1 ND ----NS ----ND --ND NS ----ND ND ----ND --ND ND NA 12/1/2005 ND ND ND ND ND ND ----ND ----<0.5 --<0.5 ND ----ND ND ----ND --ND ND NA 9/10/2008 <0.5 <0.5 <0.5 <1 NS <2 ----<0.5 ----<0.5 --<0.5 <0.5 ----<0.5 <0.5 ----<0.5 --<0.5 <0.5 NA 6/17/2009 <1 <5 <1 <3 NS <5 ----<1 ----<1 --<1 <1 ----<1 <1 ----<1 --<1 <1 NA 11/30/2009 <0.040 <0.060 <0.090 <0.19 <0.11 <0.23 <0.62 <0.080 <0.24 <0.050 --<0.11 <0.050 <0.070 <0.080 <42 <0.19 <0.10 <0.14 <0.13 <0.90 <0.090 <0.050 <0.14 <0.080 NA 6/14/2010 63 0.95 <0.054 13.84 J 28 2.6 <1.5 <0.031 <0.059 <0.059 0.97 <0.041 <0.038 1.3 0.69 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 0.80 NA 9/13/2010 55 0.79 <0.054 16 24 3.4 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 1 0.63 <42 <0.11 0.67 <0.059 --<0.11 <0.059 <0.034 1.2 1.1 NA 9/15/2011 PRE POE <0.054 <0.057 <0.054 <0.17 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 9/15/2011 POST POE <0.054 <0.057 <0.054 <0.17 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 12/6/2011 PRE POE <0.054 <0.057 <0.054 <0.17 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 12/6/2011 POST POE <0.054 <0.057 <0.054 <0.17 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 6/13/2012 PRE POE <0.054 <0.057 <0.054 <0.17 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 6/13/2012 POST POE <0.054 <0.057 <0.054 <0.17 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 2/25/2014 <0.50 <0.50 <0.50 <1.0 <0.50 <2.0 --------<1.0 ----<0.50 <0.50 ----<0.50 ----------<0.50 <0.50 NA 11/7/2017 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <50 <0.50 <0.50 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 --<5.0 <0.50 <0.50 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 NA 6/6/2019 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13 <2.0 <0.13 <0.13 <0.13 <0.20 <0.13 <0.13 <0.13 <0.13 <65 <1.0 <0.13 <0.13 <1.3 <1.3 <0.13 <0.13 <0.13 <0.13 NA 2/12/2020 <0.24 <0.23 <0.24 <0.50 <0.44 <0.66 NA <0.18 <0.35 <0.35 <0.42 <0.011 <0.24 <0.26 <0.33 <98.9 NA <0.24 NA NA NA <0.24 <0.26 <0.19 <0.23 NA 04/02/2021 <0.34 <0.48 <0.30 <0.34 <0.42 <0.64 NA <0.31 <0.49 <0.35 <0.65 <0.013 <0.37 <0.32 <0.31 <72.2 NA <0.33 NA NA NA <0.34 <0.29 <0.50 <0.33 <0.36 11/1/1997 ND ND ND ND ND ND ----ND ----ND --ND ND ----ND ND ----ND --ND ND NA 12/1/2005 ND ND ND ND ND ND ----ND ----<0.5 --<0.5 ND ----ND ND ----ND --ND ND NA 9/10/2008 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NA 6/17/2009 <1 <5 <1 <3 <1 <5 ----<1 ----<1 --<1 <1 ----<1 <1 ----<1 --<1 <1 NA 11/30/2009 <0.040 <0.060 <0.090 <0.19 <0.11 <0.23 <0.62 <0.080 <0.24 <0.050 --<0.11 <0.050 <0.070 <0.080 <42 <0.19 <0.10 <0.14 <0.13 <0.90 <0.090 <0.050 <0.14 <0.080 NA 6/14/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 9/13/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 9/15/2011 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 12/6/2011 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 6/13/2012 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 2/25/2014 <0.50 <0.50 <0.50 <1.0 <0.50 <2.0 --------<1.0 ----<0.50 <0.50 ----<0.50 ----------<0.50 <0.50 NA 10/19/2015 <0.50 <0.50 <0.50 <1.0 <0.50 <2.0 --------<1.0 ----<0.50 <0.50 ----<0.50 ----------<0.50 <0.50 NA 6/6/2019 <0.13 0.87 <0.13 <0.25 <0.13 <0.13 <2.0 <0.13 <0.13 <0.13 <0.20 <0.13 <0.13 <0.13 <0.13 <65 <1.0 <0.13 <0.13 <1.3 <1.3 <0.13 <0.13 <0.13 <0.13 NA 2/12/2020 <0.24 <0.23 <0.24 <0.50 <0.44 <0.66 NA <0.18 <0.35 <0.35 <0.42 <0.011 <0.24 <0.26 <0.33 <98.9 NA <0.24 NA NA NA <0.24 <0.26 <0.19 <0.23 NA 04/02/2021 <0.34 <0.48 <0.30 <0.34 <0.42 <0.64 NA <0.31 <0.49 <0.35 <0.65 <0.013 <0.37 <0.32 <0.31 <72.2 NA <0.33 NA NA NA <0.34 <0.29 <0.50 <0.33 <0.36 2L Standard GCL Standard WSW-2 TABLE 4 HISTORICAL WATER SUPPLY WELL ANALYTICAL RESULTS WILLIAMS GROCERY 2425 US HIGHWAY 21 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA NCDEQ INCIDENT #15063 WSW-1 Page 1 of 3 Well ID Sample Date BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthaleneAcetoneBromodichloromethanen-ButylbenzeneChloroformChloromethane1,2-Dibromoethane1,1-Dichloroethane1,2-DichloroethaneDiisopropyl EtherEthanol2-HexanoneIsopropylbenzenep-Isopropyltoluene4-Methyl-2-pentanone (MIBK)Methyl Ethyl Ketonen-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneDibromochloromethane1 600 600 500 20 6 6,000 0.6 70 70 3 0.02 6 0.40 70 4,000 40 70 25 100 4,000 70 70 400 400 0.4 5,000 260,000 84,500 85,500 20,000 6,000 6,000,000 NE 6,900 70,000 3,000 50 6,000 400 70,000 4,000,000 40,000 25,000 11,700 100,000 4,000,000 30,000 70,000 28,500 25,000 400 2L Standard GCL Standard TABLE 4 HISTORICAL WATER SUPPLY WELL ANALYTICAL RESULTS WILLIAMS GROCERY 2425 US HIGHWAY 21 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA NCDEQ INCIDENT #15063 4/14/1998 ND ND ND ND ND NS ----NS ----ND --NS ND ----NS NS ----NS --NS NS NA 6/12/2003 ND ND ND ND ND ND ----NS ----ND --ND NS ----ND ND ----ND --ND ND NA 3/8/2004 ND ND ND ND ND ND ----NS ----ND --ND NS ----ND ND ----ND --ND ND NA 12/1/2005 ND ND ND ND ND ND ----ND ----<0.5 --<0.5 ND ----ND ND ----ND --ND ND NA 9/10/2008 <0.5 <0.5 <0.5 <1 <0.5 <2 ----<0.5 ----<0.5 --<0.5 <0.5 ----<0.5 <0.5 ----<0.5 --<0.5 <0.5 NA 6/17/2009 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NA 11/30/2009 <0.040 <0.060 <0.090 <0.19 <0.11 <0.23 <0.62 <0.080 <0.24 <0.050 --<0.11 <0.050 <0.070 <0.080 <42 <0.19 <0.10 <0.14 <0.13 <0.90 <0.090 <0.050 <0.14 <0.080 NA 6/14/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 9/13/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 9/15/2011 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 12/6/2011 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 6/13/2012 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 2/25/2014 <0.50 <0.50 <0.50 <1.0 <0.50 <2.0 --------<1.0 ----<0.50 <0.50 ----<0.50 ----------<0.50 <0.50 NA 11/7/2017 6/6/2019 2/12/2020 04/02/2021 6/12/2003 ND ND ND ND ND ND ----NS ----ND --ND NS ----ND ND ----ND --ND ND NA 3/8/2004 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NA 12/1/2005 ND ND ND ND ND ND ----ND ----<0.5 --<0.5 ND ----ND ND ----ND --ND ND NA 9/10/2008 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NA 6/17/2009 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NA 9/13/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----4.3 J <0.059 <0.034 <0.038 <0.038 NA 9/15/2011 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 12/6/2011 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 6/13/2012 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 2/25/2014 <0.50 <0.50 <0.50 <1.0 <0.50 <2.0 --------<1.0 ----<0.50 <0.50 ----<0.50 ----------<0.50 <0.50 NA 10/19/2015 <0.50 <0.50 <0.50 <1.0 <0.50 <2.0 --------<1.0 ----<0.50 <0.50 ----<0.50 ----------<0.50 <0.50 NA 11/30/2009 <0.040 <0.060 <0.090 <0.19 <0.11 <0.23 <0.62 1.2 <0.24 12 --<0.11 <0.050 <0.070 <0.080 <42 <0.19 <0.10 <0.14 <0.13 <0.90 <0.090 <0.050 <0.14 <0.080 NA 2/12/2010 <0.50 <0.50 <0.50 <0.50 <0.50 <2.0 <5 <0.50 <1.0 1 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <5.0 <0.50 <0.50 <1.0 <0.50 NA 6/14/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 9/13/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 9/15/2011 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 12/6/2011 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 6/13/2012 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 2/25/2014 <0.50 <0.50 <0.50 <1.0 <0.50 <2.0 --------<1.0 ----<0.50 <0.50 ----<0.50 ----------<0.50 <0.50 NA 10/19/2015 <0.50 <0.50 <0.50 <1.0 <0.50 <2.0 --------<1.0 ----<0.50 <0.50 ----<0.50 ----------<0.50 <0.50 NA 11/7/2017 6/6/2019 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13 <2.0 <0.13 <0.13 <0.13 <0.20 <0.13 <0.13 <0.13 <0.13 <65 <1.0 <0.13 <0.13 <1.3 <1.3 <0.13 <0.13 <0.13 <0.13 NA 2/12/2020 <0.24 <0.23 <0.24 <0.50 <0.44 <0.66 NA <0.18 <0.35 <0.35 <0.42 <0.011 <0.24 <0.26 <0.33 <98.9 NA <0.24 NA NA NA <0.24 <0.26 <0.19 <0.23 NA 04/02/2021 WSW-3 Not Sampled - Occupant Absence Not Sampled - Occupant Absence Not Sampled - Occupant Absence Not Sampled - Occupant Absence WSW-5 Not Sampled - Occupant Absence WSW-4 Not Sampled - Occupant Absence Page 2 of 3 Well ID Sample Date BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthaleneAcetoneBromodichloromethanen-ButylbenzeneChloroformChloromethane1,2-Dibromoethane1,1-Dichloroethane1,2-DichloroethaneDiisopropyl EtherEthanol2-HexanoneIsopropylbenzenep-Isopropyltoluene4-Methyl-2-pentanone (MIBK)Methyl Ethyl Ketonen-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneDibromochloromethane1 600 600 500 20 6 6,000 0.6 70 70 3 0.02 6 0.40 70 4,000 40 70 25 100 4,000 70 70 400 400 0.4 5,000 260,000 84,500 85,500 20,000 6,000 6,000,000 NE 6,900 70,000 3,000 50 6,000 400 70,000 4,000,000 40,000 25,000 11,700 100,000 4,000,000 30,000 70,000 28,500 25,000 400 2L Standard GCL Standard TABLE 4 HISTORICAL WATER SUPPLY WELL ANALYTICAL RESULTS WILLIAMS GROCERY 2425 US HIGHWAY 21 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA NCDEQ INCIDENT #15063 11/30/2009 <0.040 <0.060 <0.090 <0.19 <0.11 <0.23 <0.62 1.2 <0.24 12 --<0.11 <0.050 <0.070 <0.080 <42 <0.19 <0.10 <0.14 <0.13 <0.90 <0.090 <0.050 <0.14 <0.080 NA 6/14/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 9/13/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 9/15/2011 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 12/6/2011 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 6/13/2012 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 2/25/2014 <0.50 <0.50 <0.50 <1.0 <0.50 <2.0 --------<1.0 ----<0.50 <0.50 ----<0.50 ----------<0.50 <0.50 NA 10/19/2015 <0.50 <0.50 <0.50 <1.0 <0.50 <2.0 --------<1.0 ----<0.50 <0.50 ----<0.50 ----------<0.50 <0.50 NA 11/7/2017 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <50 <0.50 <0.50 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 --<5.0 <0.50 <0.50 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 NA 6/6/2019 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <50 <0.50 <0.50 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 --<5.0 <0.50 <0.50 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 NA 2/12/2020 04/02/2021 <0.34 2.5 <0.30 <0.34 <0.42 <0.64 NA 1.0 <0.49 5.4 <0.65 <0.013 <0.37 <0.32 <0.31 <72.2 NA <0.33 NA NA NA <0.34 <0.29 <0.50 <0.33 0.42J 11/30/2009 <0.040 <0.060 <0.090 <0.19 <0.11 <0.23 <0.62 1.2 <0.24 12 --<0.11 0.63 <0.070 <0.080 <42 <0.19 <0.10 <0.14 <0.13 <0.90 <0.090 <0.050 <0.14 <0.080 NA 2/12/2010 <0.50 <0.50 <0.50 <0.50 <0.50 <2.0 <5 <0.50 <1.0 1 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <5.0 <0.50 <0.50 <1.0 <0.50 NA 6/14/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 0.053 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 9/13/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 9/15/2011 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 12/6/2011 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 0.52 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 6/13/2012 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 0.52 <0.054 <0.042 <42 <0.11 <0.034 <0.059 --<0.83 <0.059 <0.034 <0.038 <0.038 NA 2/25/2014 <0.50 <0.50 <0.50 <1.0 <0.50 <2.0 --------<1.0 ----<0.50 <0.50 ----<0.50 ----------<0.50 <0.50 NA 11/7/2017 6/6/2019 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13 <2.0 <0.13 <0.13 <0.13 <0.20 <0.13 0.31 J <0.13 <0.13 <65 <1.0 <0.13 <0.13 <1.3 <1.3 <0.13 <0.13 <0.13 <0.13 NA 2/12/2020 <0.24 9.3 <0.24 <0.50 <0.44 <0.66 NA <0.18 <0.35 <0.35 <0.42 <0.011 <0.24 <0.26 <0.33 <98.9 NA <0.24 NA NA NA <0.24 <0.26 <0.19 <0.23 NA 04/02/2021 <0.34 <0.48 <0.30 <0.34 <0.42 <0.64 NA <0.31 <0.49 <0.35 <0.65 <0.012 <0.37 <0.32 <0.31 <72.2 NA <0.33 NA NA NA <0.34 <0.29 <0.50 <0.33 <0.36 WSW-8 9/13/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 9/13/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 6/6/2019 <0.13 <0.13 <0.13 <0.25 0.13 J <0.13 55.1 <0.13 <0.13 <0.13 0.33 J <0.13 0.28 J <0.13 <0.13 <65 <1.0 <0.13 <0.13 <1.3 17.1 <0.13 <0.13 <0.13 <0.13 NA 2/12/2020 <0.24 <0.23 <0.24 <0.50 <0.44 <0.66 NA <0.18 <0.35 <0.35 <0.42 <0.011 <0.24 <0.26 <0.33 <98.9 NA <0.24 NA NA NA <0.24 <0.26 <0.19 <0.23 NA 9/13/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA 2/12/2020 4/2/2021 WSW-18 9/13/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.053 <0.032 <0.041 <0.038 <0.054 <0.042 <42 --<0.034 ----<0.83 <0.059 <0.034 <0.038 <0.038 NA Notes: "<" or ND = Not Detected at or above the laboratory detection or reporting limit Concentrations are reported in micrograms per liter (µg/L) Italicized values indicate levels above GCLs J = Estimated value below method reporting limit NA = Not Analyzed GCL = Gross Contamination Level Concentrations in bold print equal or exceed the 15A NCAC 2L .0202 Groundwater Qualtiy Standard (2L Standard). WSW-9 WSW-7 WSW-6 Not Sampled - Occupant Absence Not Sampled - No Running Water Not Required Not Sampled - Tenant Could Not Give Approval For Property Owner WSW-10 Page 3 of 3 MW-1 November 1996 33 23-33 498.82 MW-2 November 1996 30 20-30 499.27 MW-3 November 1996 33 23-33 499.48 MW-4 April 1998 34 24-34 499.45 MW-5 April 1998 34 24-34 498.34 MW-6 April 1998 34 24-34 495.39 MW-8 April 1998 32 22-32 492.98 MW-12 February 2020 35 20-35 496.85 RW-1 June 2010 Unknown Unknown 499.38 Notes: ft = feet ft-bgs = feet below ground surface TOC = Top of Casing NCDEQ INCIDENT #15063 Well ID Date Installed Depth of Well (ft-bgs) Well Screen Interval (ft-bgs) TOC Elevation (ft) TABLE 5 MONITORING WELL CONSTRUCTION DETAILS WILLIAMS GROCERY 2425 US HIGHWAY 21 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA Well Date Temperature (◦C) Conductivity (mS/cm) pH (su) Oxidation- Reduction Potential (mV) Dissolved Oxygen (mg/L) MW-1 4/2/2021 12.8 0.104 5.0 205 1.3 MW-2 4/2/2021 Not Required MW-3 4/2/2021 13.7 0.184 4.7 218 1.1 MW-4 4/2/2021 Not Required MW-5 4/2/2021 10.4 0.040 5.2 161 7.5 MW-6 4/2/2021 Not Required MW-12 4/2/2021 12.1 0.104 6.2 153 4.0 AS-1 4/2/2021 12.2 0.092 5.8 162 3.2 RW-1 4/2/2021 Notes: °C = Degrees Celsius su = Standard Units mV = millivolts mS/cm = milliSiemens per centimeter mg/L = milligrams per liter Parameters Not Collected NCDEQ INCIDENT #15063 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA TABLE 6 FIELD PARAMETERS WILLIAMS GROCERY 2425 US HIGHWAY 21 Sample ID Constituent of Concern BenzeneTolueneEthylbenzeneXylene (Total)Methyl-tert-butyl etherNaphthalenen-Butylbenzenesec-ButylbenzeneChloroform1,2-Dibromoethane (EDB)1,2-DichloroethaneDiisopropyl ether2-HexanoneIsopropylbenzene (Cumene)Styrene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenetert-Amyl Alcoholtert-Butyl Alcohol1 600 600 500 20 6 70 70 70 0.02 0.4 70 40 70 70 400 400 40 10 5,000 260,000 80,000 50,000 20,000 6,000 69,00 8,500 70,000 50 400 70,000 40,000 25,000 70,000 28,500 24,100 40,000 10,000 03/15/2021 11,100 18,900 1,670 15,700 6,700 815 <98.0 <80.0 <70.6 858 1,130 200 853J <66.6 <58.4 2,670 773 17,000J 15,200 03/17/2021 2,860 4,010 290 6,040 5,050 327 <19.6 <16.0 <14.1 334 419 95.1 360 17.9J 1,380 1,380 465 15,300 24,700 04/02/2021 15,100 21,700 1,730 12,800 8,260 738 <61.2 <50.0 <44.1 809 1,060 291 NA 76.7 40.0J 2,200 658 12,600 16,000 03/15/2021 15,200 29,400 2,260 17,000 <106 816 <122 <100 <88.2 779 220 <77.0 527J 102J 79.0J 2,710 789 <9100 <6700 03/17/2021 2,840 6,020 442 5,880 51.1 520 <24.5 <20.0 <17.6 240 65.5 <15.4 228J 27.9 1,370 1,370 588 4,960J <1340 04/02/2021 15,300 28,400 2,220 15,000 <84.4 990 <98.0 <80.0 <70.6 673 195 <61.6 NA 106 75.4J 2,730 <66.4 <7280 <5360 03/15/2021 17,000 39,600 4,920 24,400 252 2,580 <98.0 <80.0 <70.6 515 337 103 <95.2 396 117 12,100 3,100 <7280 <5360 03/17/2021 15,400 41,400 3,800 21,400 717 1,210 <122 <100 <88.2 550 408 142 <119 188 4,870 4,870 1,330 <9100 <6700 MW-5 04/02/2021 4.5 12.6 2.1 17.9 <0.42 1.6J 0.76 <0.40 <0.35 <0.27 <0.32 <0.31 NA <0.33 <0.29 9.9 3.5 <36.4 <26.8 MW-12 04/02/2021 <0.34 <0.48 <0.30 <0.34 <0.42 <0.64 <0.49 <0.40 <0.35 <0.27 <0.32 <0.31 NA <0.33 <0.29 <0.50 <0.33 <36.4 <26.8 AS-1 04/02/2021 11.1 5.2 1.0 20.7 24.4 2.3 <0.49 <0.40 <0.35 0.74 24.9 10 NA <0.33 <0.29 1.2 <0.33 2,070 101 Notes: Italicized values indicate levels above GCLs J = Estimated value below method reporting limit Concentrations in bold print exceed the 15A NCAC 02L .0202 Groundwater Quality Standard (2L Standard). Concentrations in underlined print exceed the Gross Contamination Level (GCL) MW-1 MW-3 RW-1 2L Standard GCL TABLE 7 RECENT GROUNDWATER ANALYTICAL RESULTS WILLIAMS GROCERY 2425 US HIGHWAY 21 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA NCDEQ INCIDENT #15063 Well ID Sample Date BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthaleneAcetoneBromodichloromethanen-Butylbenzenesec-ButylbenzeneChloroformChloromethane1,2-Dibromoethane1,1-Dichloroethane1,2-Dichloroethane1,2-DichloropropaneDiisopropyl EtherEthanol2-HexanoneIsopropylbenzenep-Isopropyltoluene4-Methyl-2-pentanone (MIBK)Methyl Ethyl Ketonen-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenetert-Amyl Alcoholtert-Butyl Alcoholtert-Amylmethyl ether1 600 600 500 20 6 6,000 0.6 70 70 70 3 0.02 6 0.40 0.60 70 4,000 40 70 25 100 4,000 70 70 400 400 40 10 128 5,000 260,000 84,500 85,500 20,000 6,000 6,000,000 NE 6,900 8,500 70,000 3,000 50 6,000 400 600 70,000 4,000,000 40,000 25,000 11,700 100,000 4,000,000 30,000 70,000 28,500 25,000 40,000 10,000 12800 11/8/1996 4/14/1998 6/12/2003 3/8/2004 12/1/2005 23,009 33,000 3,200 152,000 25,000 2,700 ----<250 ------1,200 --5,100 --560 ----<250 <250 ----<250 --3,700 15,200 NA NA NA 9/10/2008 6/17/2009 11/30/2009 26,000 29,000 3,000 9,100 28,000 800 5,000 <3.2 25 --<2 --1,000 <2 <2 --590 9,700 190 110 4,000 110 2,700 300 67 2,500 110 NA NA NA 6/14/2010 30,000 35,000 2,900 16,400 54,000 1,100 10,000 <2 82 34 <2.1 <13 1,300 <1.5 2,900 --600 <1,700 580 160 --<1.9 7,400 420 72 1,400 1,100 NA NA NA 9/15/2011 35,000 38,000 2,700 19,500 75,000 660 14,000 <3.1 <5.9 <5.4 <13 <3.2 1,800 <3.8 4,300 --940 <4,200 450 190 96 250 9,800 320 170 2,100 550 NA NA NA 6/13/2012 2/25/2014 24,800 32,900 2,890 19,280 66,200 1,090 NA <25.0 <25.0 <25.0 <25.0 <50.0 1,440 <25.0 2,860 <25.0 744 NA NA 144 NA NA NA 438 103 3,880 1,110 NA NA NA 10/3/2015 23,400 30,700 2,550 14,090 35,900 <1,000 NA <250 <250 <250 <250 <500 1,350 <250 2,500 <250 549 NA NA <250 NA NA NA <250 <250 2,170 588 NA NA NA 11/7/2017 27,000 34,000 2,700 14,200 30,000 820 31,000 <200 <200 <200 <200 <800 1,500 <200 3,300 <200 540 NA 1,600 J 96 J <200 <2,000 15,000 260 210 2,100 540 NA NA NA 5/6/2019 19,800 32,700 3,130 20,000 19,400 894 24,500 <500 <500 <500 <500 <500 1,260 <500 1,970 <500 369 J NA <5,000 139 J <500 <2,500 8,940 424 J <500 3,610 1,120 NA NA NA 6/6/2019 19,600 31,100 2,790 18,800 16,700 695 15,300 <130 <130 <130 <130 <200 1,160 <130 1,830 <130 390 J <65,000 <1,000 141 J <130 <1,300 7,820 358 J <130 2,990 934 NA NA NA 2/13/2020 19,500 26,400 2,000 15,300 36,500 710 NA <37.0 <70.6 <49.2 <70.6 <83.0 1,130 <48.8 2280 <36.6 590 <19800 NA <47.6 NA NA NA 167 <51.2 2,260 558 59,600 286,000 NA 03/15/2021 11,100 18,900 1,670 15,700 6,700 815 NA <61.4 <98.0 <80.0 <70.6 NA 858 <73.4 1130 <71.0 200 <14400 853J <66.6 NA NA 2110 <68.0 <58.4 2,670 773 17000J 15,200 <532 03/17/2021 2,860 4,010 290 6,040 5,050 327 NA <12.3 <19.6 <16.0 <14.1 NA 334 <13.9 419 <14.2 95.1 <2890 360 17.9J NA NA NA <13.6 1,380 1,380 465 15,300 24,700 111J 04/02/2021 15,100 21,700 1,730 12,800 8,260 738 NA <38.4 <61.2 <50.0 <44.1 NA 809 <43.5 1060 <44.4 291 <9020 NA 76.7 NA NA NA <42.5 40.0J 2,200 658 12,600 16,000 <332 11/8/1996 1,200 3,100 400 1,580 ND NS ----NS ------11.3 --NS --170 ----NS NS ----NS --NS NS NA NA NA 4/14/1998 640 1,100 56 350 ND ND ----NS ------ND --NS --81 ----NS NS ----NS --NS NS NA NA NA 6/12/2003 ND 1.3 ND 12 ND ND ----NS ------ND -ND --ND ----ND NS ----ND --ND 5 NA NA NA 3/8/2004 1.4 2.6 ND 27.1 ND ND ----NS ------ND --ND --ND ----ND NS ----ND --ND 10 NA NA NA 12/1/2005 ND ND ND ND ND ND ----ND ------<0.50 --<0.5 --ND ----ND ND ----ND --ND ND NA NA NA 9/10/2008 142 494 92.7 386 <0.5 15.7 ----<0.5 ------1.7 --<5 --<0.5 ----3.4 <0.5 ----6.3 --44.1 24 NA NA NA 6/17/2009 41 120 16 79 <1 <5 ----<1 ------<1 --<1 --<1 ----<1 <1 ----1.4 --8.3 4.6 NA NA NA 11/30/2009 22 39 8 91 <0.11 1.6 <0.62 <0.080 <0.24 --<0.050 --<0.11 --<0.070 --<0.080 <42 <0.19 <0.10 <0.14 <0.13 <0.90 0.52 <0.050 4.7 <0.080 NA NA NA 6/14/2010 <0.0054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.054 <0.053 <0.032 <0.041 <0.038 <0.054 --<0.034 <42 <0.11 <0.034 --<0.048 <0.83 <0.059 <0.034 <0.038 <0.038 NA NA NA 9/15/2011 10 110 20 214 <0.056 16 <1.5 <0.031 0.57 <0.054 <0.053 <0.032 <0.041 <0.038 <0.054 --<0.042 <42 3.9 2.8 1.7 4 <0.83 4.4 <0.034 140 38 NA NA NA 6/13/2012 710 5,200 480 2,900 <0.056 130 49 J <0.031 22 <0.054 <0.053 <0.032 <0.041 <0.038 <0.054 --<0.042 <42 3.9 23 12 4 <0.83 22 16 580 210 NA NA NA 2/24/2014 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0 NA <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.050 NA NA <0.50 NA NA NA <0.50 <0.50 <0.50 <0.50 NA NA NA 10/3/2015 51.7 233 2,550 188.6 <0.50 8 NA <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 549 NA NA 1.5 NA NA NA 2.3 0.75 19.7 12.7 NA NA NA 11/7/2017 74 1,000 130 680 <25 39 <2,500 <25 <25 <25 <25 <100 <25 <25 <25 <25 <25 NA <250 <25 <25 <250 <250 <25 <25 86 34 NA NA NA 6/6/2019 <0.13 0.29 J 0.17 J 1.2 J <0.13 0.21 J <2.0 <0.13 <0.13 <0.13 <0.13 <0.20 <0.13 <0.13 <0.13 <0.13 <0.13 <65 <1.0 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 1.1 0.39 J NA NA NA 2/13/2020 16.1 490 77.9 380 <2.2 18.1 NA <0.92 <1.8 <1.2 <1.8 <2.1 <1.2 <1.2 <1.3 <0.92 <1.7 <494 NA <1.2 NA NA NA <1.2 2.6 46.2 <1.1 <202 <88.0 NA HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA 2425 US HIGHWAY 21 WILLIAMS GROCERY MW-1 2L Standard GCL Standard Not Sampled - LNAPL NCDEQ INCIDENT #15063 HISTORICAL GROUNDWATER ANALYTICAL RESULTS Not Sampled - LNAPL Not Sampled - LNAPL Not Sampled - LNAPL Not Sampled - LNAPL TABLE 8 Not Sampled - LNAPL MW-2 Not Sampled - Could Not Locate Page 1 of 5 Well ID Sample Date BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthaleneAcetoneBromodichloromethanen-Butylbenzenesec-ButylbenzeneChloroformChloromethane1,2-Dibromoethane1,1-Dichloroethane1,2-Dichloroethane1,2-DichloropropaneDiisopropyl EtherEthanol2-HexanoneIsopropylbenzenep-Isopropyltoluene4-Methyl-2-pentanone (MIBK)Methyl Ethyl Ketonen-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenetert-Amyl Alcoholtert-Butyl Alcoholtert-Amylmethyl ether1 600 600 500 20 6 6,000 0.6 70 70 70 3 0.02 6 0.40 0.60 70 4,000 40 70 25 100 4,000 70 70 400 400 40 10 128 5,000 260,000 84,500 85,500 20,000 6,000 6,000,000 NE 6,900 8,500 70,000 3,000 50 6,000 400 600 70,000 4,000,000 40,000 25,000 11,700 100,000 4,000,000 30,000 70,000 28,500 25,000 40,000 10,000 12800 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA 2425 US HIGHWAY 21 WILLIAMS GROCERY 2L Standard GCL Standard NCDEQ INCIDENT #15063 HISTORICAL GROUNDWATER ANALYTICAL RESULTS TABLE 8 11/8/1996 4/14/1998 6/12/2003 3/8/2004 12/1/2005 23,000 34,000 2,300 313,500 2,900 760 ----ND ------1,100 --1,200 --570 ----88 ND ----220 ND 2,100 460 NA NA NA 9/10/2008 6/17/2009 11,000 26,000 4,300 22,200 <100 610 ----210 ------470 --310 --<100 ----260 <100 ----990 <100 6,300 2,000 NA NA NA 11/30/2009 9,200 13,000 1,700 9,000 <4.4 570 <25 <3.2 33 --<2 ----------<3.2 <1,700 <7.6 90 <5.6 <5 350 250 <5.6 ----NA NA NA 6/14/2010 14,000 23,000 2,100 11,500 410 870 7,500 <1.2 31 <2.2 <2.1 <1.3 510 <1.5 410 --87 <1,700 790 110 --340 6,800 280 --2,200 620 NA NA NA 9/15/2011 31,000 44,000 2,900 15,200 590 890 10,000 <3.1 <5.9 <5.4 <5.3 <3.2 1,200 <3.8 1,100 --300 <4,200 1,200 210 95 420 6,200 370 95 2,700 670 NA NA NA 6/13/2012 2/25/2014 17,500 37,500 3,570 23,020 598 1,340 NA <50.0 <50.0 <50.0 <50.0 <100.0 1,030 <50.0 607 <50.0 149 <50.0 NA 192 NA NA NA 624 NA 4,980 1,400 NA NA NA 10/3/2015 11/7/2017 21,000 41,000 3,500 20,800 <500 1,300 5,500 J <500 <500 <500 <500 <500 1,200 <500 <500 <500 <500 NA <5,000 <500 <500 <5,000 2,700 J 420 J <500 3,500 980 NA NA NA 5/6/2019 18,300 32,300 2,350 15,800 <500 732 <10,000 <500 <500 <500 <500 <500 <500 <500 314 J <500 <500 NA <500 <500 <500 <2,500 <2,500 256 J <500 2,340 666 NA NA NA 6/6/2019 14,300 32,800 2,840 20,600 167 J 738 <2,000 <130 <130 <130 <130 <200 797 <130 298 J <130 <130 <65,000 <1,000 153 J <130 <1,300 <1,300 413 J <130 3,500 1,000 NA NA NA 2/13/2020 14,200 34,600 2,940 19,600 121J 1,030 NA <46.2 <88.2 <61.5 <88.2 <104 716 <61.0 201 <45.8 <83.5 <24700 NA <59.5 NA NA NA 361 88.9J 3,560 942 <10100 <4400 NA 03/15/2021 15,200 29400 2260 17000 <106 816 NA <76.8 <122 <100 <88.2 NA 779 <91.8 220 <88.8 <77.0 <18000 527J 102J NA NA <990 <85.0 79.0J 2710 789 <9100 <6700 <665 03/17/2021 2,840 6,020 442 5,880 51.1 520 NA <15.4 <24.5 <20.0 <17.6 NA 240 <17.4 65.5 <17.8 <15.4 <3610 228J 27.9 NA NA NA <17.0 1370 1370 588 4960J <1340 <133 04/02/2021 15,300 28,400 2,220 15,000 <84.4 990 NA <61.4 <98.0 <80.0 <70.6 NA 673 <69.6 195 <71.0 <61.6 <14400 NA 106 NA NA NA <68.0 75.4J 2730 <66.4 <7280 <5360 <532 4/14/1998 6 2 1 4 ND NS ----NS ------ND --NS --ND ----NS NS NS --NS --NS NS NA NA NA 6/12/2003 ND ND ND ND ND ND ----NS ------ND --ND --ND ----ND NS ND --NS --ND ND NA NA NA 3/8/2004 ND ND ND ND ND ND ----NS ------ND --ND --ND ----ND NS ND --NS --ND ND NA NA NA 12/1/2005 ND ND ND ND ND ND ----ND ------<0.5 --<0.5 --ND ----ND ND ND --ND --ND ND NA NA NA 9/10/2008 <0.5 0.58 <0.5 <1 <0.50 <2 ----<0.5 ------<0.5 --<0.5 --<0.5 ----<0.5 <0.5 <0.5 --<0.5 --<0.5 <0.5 NA NA NA 6/17/2009 <1 <5 <1 <3 <1 <5 ----<1 ------<1 --<1 --<1 ----<1 <1 <1 --<1 --<1 <1 NA NA NA 11/30/2009 <0.040 <0.060 <0.090 <0.19 <0.11 <0.23 <0.62 <0.080 <0.24 --<0.050 --<0.11 <0.050 <0.070 --<0.080 <42 --<0.10 <0.14 <0.090 <0.090 <0.14 <0.50 <0.14 <0.080 NA NA NA 6/14/2010 <0.054 <0.057 <0.054 <0.174 <0.056 <0.094 <1.5 <0.031 <0.059 <0.054 <0.053 <0.032 <0.041 <0.038 <0.054 --<0.034 <42 <0.11 <0.034 --<0.059 <0.83 --<0.034 <0.038 <0.038 NA NA NA 9/15/2011 <0.054 <0.057 <0.054 <0.17 <0.056 <0.094 <1.5 <0.031 <0.059 <0.054 <0.053 <0.032 <0.041 <0.038 <0.054 --<0.034 <42 <0.11 <0.034 --<0.059 <0.83 --<0.034 <0.038 <0.038 NA NA NA 6/13/2012 <0.054 <0.057 <0.054 <0.17 <0.056 <0.094 <1.5 <0.031 <0.059 <0.054 <0.053 <0.032 <0.041 <0.038 <0.054 --<0.034 <42 <0.11 <0.034 --<0.059 <0.83 --<0.034 <0.038 <0.038 NA NA NA 2/24/2014 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0 NA <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <0.50 NA <0.50 NA NA <0.50 <0.50 <0.50 NA NA NA 10/3/2015 <0.50 <0.50 <0.50 <0.50 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <0.50 NA <0.50 NA NA <0.50 <0.50 <0.50 NA NA NA 11/7/2017 <0.50 <0.5 <0.50 <1.5 <0.50 <0.50 <50 <0.50 <0.50 <0.50 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 NA <5.0 <0.50 <0.50 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 NA NA NA 6/6/2019 <0.13 <0.13 <0.13 <0.25 <0.13 <0.13 <2.0 <0.13 <0.13 <0.13 <0.13 <0.20 <0.13 <0.13 <0.13 <0.13 <0.13 <65 <1.0 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 NA NA NA 2/13/2020 <0.24 <0.23 <0.24 <0.50 <0.44 <0.66 NA <0.18 <0.35 <0.25 <0.35 <0.42 <0.23 <0.24 <0.26 <0.18 <0.33 <98.9 NA <0.24 NA NA NA <0.24 <0.26 <0.19 <0.23 <40.5 <17.6 NA Not Sampled - LNAPL Not Sampled - LNAPL MW-3 MW-4 Not Sampled - LNAPL Not Sampled - LNAPL Not Sampled - LNAPL Not Sampled - LNAPL Not Sampled - LNAPL Page 2 of 5 Well ID Sample Date BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthaleneAcetoneBromodichloromethanen-Butylbenzenesec-ButylbenzeneChloroformChloromethane1,2-Dibromoethane1,1-Dichloroethane1,2-Dichloroethane1,2-DichloropropaneDiisopropyl EtherEthanol2-HexanoneIsopropylbenzenep-Isopropyltoluene4-Methyl-2-pentanone (MIBK)Methyl Ethyl Ketonen-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenetert-Amyl Alcoholtert-Butyl Alcoholtert-Amylmethyl ether1 600 600 500 20 6 6,000 0.6 70 70 70 3 0.02 6 0.40 0.60 70 4,000 40 70 25 100 4,000 70 70 400 400 40 10 128 5,000 260,000 84,500 85,500 20,000 6,000 6,000,000 NE 6,900 8,500 70,000 3,000 50 6,000 400 600 70,000 4,000,000 40,000 25,000 11,700 100,000 4,000,000 30,000 70,000 28,500 25,000 40,000 10,000 12800 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA 2425 US HIGHWAY 21 WILLIAMS GROCERY 2L Standard GCL Standard NCDEQ INCIDENT #15063 HISTORICAL GROUNDWATER ANALYTICAL RESULTS TABLE 8 4/14/1998 2,200 1,200 120 820 ND NS ----NS ------ND --NS --ND ----NS NS ----NS --NS NS NA NA NA 6/12/2003 3,200 700 190 1,220 ND ND ----NS ------ND --ND --ND ----ND NS ----NS --170 62 NA NA NA 3/8/2004 140 5 7.1 68 ND ND ----NS ------ND --ND --ND ----ND NS ----NS --9.4 2.7 NA NA NA 12/1/2005 200 2.6 5.4 98 3.5 5.1 ----ND ------<0.5 --<0.5 --4 ----0.7 ND ----ND --16 4.5 NA NA NA 9/10/2008 520 3.6 3 155.8 8.2 6.6 ----<5 ------<0.5 --<0.5 --5.1 ----1.1 <0.5 ----<0.5 --30 9.9 NA NA NA 6/17/2009 2,900 <500 110 1,140 <100 <500 ----<100 ------<1 --<1 --<100 ----<100 <100 ----<100 --220 <100 NA NA NA 11/30/2009 3,300 58 150 1,570 60 <9.2 <25 <3.2 <9.6 --<0.050 --<0.11 <0.050 <0.070 --22 <1,700 <7.6 <4 <5.6 <5 <36 <5.6 <2 290 54 NA NA NA 6/14/2010 42 <0.057 <0.057 8.2 3.4 1.7 <1.5 <0.031 <0.059 <0.054 <0.053 <0.032 <0.041 <0.038 <0.054 --0.63 <42 <0.11 <0.034 --<0.048 <0.83 --<0.034 1.5 0.59 NA NA NA 9/15/2011 110 <0.057 1 19.3 1.8 2.1 <1.5 <0.031 <0.059 <0.054 <0.053 <0.032 <0.041 <0.038 <0.054 --0.72 <42 <0.11 <0.034 <0.059 <0.043 <0.83 <0.059 <0.034 5.9 1.60 NA NA NA 6/13/2012 370 2 7.8 75 7.5 2.2 <1.5 <0.031 1.5 <0.054 <0.053 <0.032 <0.041 <0.038 <0.054 --2.2 <42 <0.11 <0.034 <0.059 <0.043 <0.83 <0.059 <0.034 15 5.9 NA NA NA 2/24/2014 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0 NA <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA <0.50 <0.50 <0.50 NA NA NA 10/3/2015 0.56 <0.50 <0.50 <1.0 1.8 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 NA NA <0.50 NA NA NA NA <0.50 <0.50 <0.50 NA NA NA 11/7/2017 0.78 <0.5 <0.50 <1.5 <0.50 <0.50 <50 <0.50 <0.50 <0.50 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 NA <5.0 <0.50 <0.50 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 NA NA NA 6/6/2019 <0.13 0.51 <0.13 <0.25 <0.13 0.16 J <2.0 <0.13 <0.13 <0.13 <0.13 <0.20 <0.13 <0.13 <0.13 <0.13 <0.13 <65 <1.0 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 0.17 J <0.13 NA NA NA 2/13/2020 50.3 <0.23 <0.24 4.0 3.9 0.78J NA <0.18 <0.35 <0.25 <0.35 <0.42 <0.23 <0.24 15.1 <0.18 0.68 <98.9 NA <0.24 NA NA NA <0.24 <0.26 <0.19 <0.23 137 <17.6 NA 04/02/2021 4.5 12.6 2.1 17.9 <0.42 1.6J NA <0.31 0.76 <0.40 <0.35 NA <0.27 <0.35 <0.32 <0.36 <0.31 <72.2 NA <0.33 NA NA NA <0.34 <0.29 9.9 3.5 <36.4 <26.8 <2.7 4/14/1998 ND ND ND ND ND NS ----NS ------ND --NS --ND ----NS NS ----NS --NS NS NA NA NA 6/12/2003 ND ND ND ND ND ND ----NS ------ND --ND --ND ----ND NS ----ND --ND ND NA NA NA 3/8/2004 1.1 ND ND ND ND ND ----NS ------ND --ND --ND ----ND NS ----ND --ND ND NA NA NA 12/1/2005 ND ND ND ND ND ND ----ND ------<0.5 --<0.5 --ND ----ND ND ----ND --ND ND NA NA NA 9/10/2008 <0.5 <0.5 <0.5 <1 <0.5 <2 ----<0.5 ------<0.5 --<0.5 --<0.5 ----<0.5 <0.5 ----<0.5 --<0.5 <0.5 NA NA NA 6/17/2009 <1 <5 <1 <3 <1 <5 ----<1 ------<1 --<1 --<1 ----<1 <1 ----<1 --<1 <1 NA NA NA 11/30/2009 <0.040 <0.060 <0.090 <0.19 <0.11 <0.23 <0.62 <0.080 <0.24 --<0.050 --<0.11 <0.050 <0.070 --<0.080 <42 <0.19 <0.10 <0.14 <0.13 <0.90 <0.090 <0.050 <0.14 <0.080 NA NA NA 6/13/2012 <0.040 <0.060 <0.090 <0.19 <0.11 <0.23 <0.62 <0.080 <0.24 --<0.050 --<0.11 <0.050 <0.07 --<0.080 <42 <0.19 <0.10 <0.14 <0.13 <0.90 <0.090 <0.050 <0.14 <0.080 NA NA NA 2/24/2014 <0.50 <0.50 <0.50 <1.5 <0.50 ND NA <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 --<0.50 <0.50 NA NA <0.50 <0.50 NA NA <2.0 <0.50 <0.50 NA NA NA 10/3/2015 <0.50 <0.50 <0.50 <0.50 <0.50 <2.0 NA <0.50 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 --<0.50 NA NA <0.50 NA NA NA <0.50 <0.50 <0.50 <0.50 NA NA NA 11/7/2017 <0.50 <0.5 <0.50 <1.5 <0.50 <0.50 <50 <0.50 <0.50 <0.50 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 NA <5.0 <0.50 <0.50 <5.0 <5.0 <0.50 <0.50 <0.50 <0.50 NA NA NA 6/6/2019 <0.13 0.23 J <0.13 <0.25 <0.13 <0.13 <2.0 <0.13 <0.13 <0.13 <0.13 <0.20 <0.13 <0.13 <0.13 <0.13 <0.13 <65 <1.0 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 <0.13 NA NA NA 2/13/2020 <0.24 <0.23 <0.24 <0.50 <0.44 <0.66 NA <0.18 <0.35 <0.25 <0.35 <0.42 <0.23 <0.24 <0.26 <0.18 <0.33 <98.9 NA <0.24 NA NA NA <0.24 <0.26 <0.19 <0.23 <40.5 <17.6 NA 4/14/1998 ND ND ND ND ND ND ----NS ------ND --NS --ND ----NS NS --------NS NS NA NA NA 6/12/2003 ND ND ND ND ND ND ----NS ------ND --ND --ND ----ND ND ----ND --ND ND NA NA NA 3/8/2004 1.40 ND ND 9.6 ND ND ----NS ------ND --ND --ND ----ND ND ----ND --1.6 ND NA NA NA 12/1/2005 9/10/2008 6/17/2009 Not Sampled - Could Not Locate Not Sampled - Could Not Locate Not Sampled - Could Not Locate MW-7 MW-5 MW-6 Page 3 of 5 Well ID Sample Date BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthaleneAcetoneBromodichloromethanen-Butylbenzenesec-ButylbenzeneChloroformChloromethane1,2-Dibromoethane1,1-Dichloroethane1,2-Dichloroethane1,2-DichloropropaneDiisopropyl EtherEthanol2-HexanoneIsopropylbenzenep-Isopropyltoluene4-Methyl-2-pentanone (MIBK)Methyl Ethyl Ketonen-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenetert-Amyl Alcoholtert-Butyl Alcoholtert-Amylmethyl ether1 600 600 500 20 6 6,000 0.6 70 70 70 3 0.02 6 0.40 0.60 70 4,000 40 70 25 100 4,000 70 70 400 400 40 10 128 5,000 260,000 84,500 85,500 20,000 6,000 6,000,000 NE 6,900 8,500 70,000 3,000 50 6,000 400 600 70,000 4,000,000 40,000 25,000 11,700 100,000 4,000,000 30,000 70,000 28,500 25,000 40,000 10,000 12800 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA 2425 US HIGHWAY 21 WILLIAMS GROCERY 2L Standard GCL Standard NCDEQ INCIDENT #15063 HISTORICAL GROUNDWATER ANALYTICAL RESULTS TABLE 8 4/14/1998 240 2 ND 24 ND NS ----NS ------ND --NS --ND ----NS NS ----NS --NS NS NA NA NA 6/12/2003 2,300 ND ND 310 ND ND ----NS ------ND --ND --ND ----ND NS ----ND --ND ND NA NA NA 3/8/2004 1,200 ND ND 160 ND ND ----NS ------ND --140 --ND ----ND NS ----ND --ND ND NA NA NA 12/1/2005 1,600 1.9 ND ND 28 54 ----ND ------<0.5 --140 --14 ----6.6 ND ----ND --ND 4.8 NA NA NA 9/10/2008 1,130 1 <0.5 76 34 65.3 ----1.8 ------<0.5 --116 --10 ----8 3.2 ----<0.5 --<0.5 3.2 NA NA NA 6/17/2009 610 <5 <1 90 22 7.7 ----<1 ------<1 --66 --6.1 ----3.5 1.2 ----<1 --<1 1.4 NA NA NA 11/30/2009 890 0.6 <0.90 161.3 30 44 <6.2 <0.80 <2.4 --<0.50 --<1.1 <0.50 77 --8.8 <420 <1.9 <1 <1.4 <1.3 <9 <0.90 <0.50 <1.4 <0.80 NA NA NA 6/14/2010 970 <0.57 <0.54 101.1 30 30 <15 <0.31 <0.59 <0.54 <0.53 <0.32 <0.41 <0.38 80 --7.3 <420 <1.1 <0.34 --<0.48 <8.3 <0.59 <0.34 <0.38 <0.38 NA NA NA 6/13/2012 11/7/2017 4/14/1998 5 ND ND 4 ND NS ----NS ------ND --NS ND ----NS NS ----NS --NS NS NA NA NA 6/12/2003 3/8/2004 12/1/2005 9/10/2008 6/17/2009 4/14/1998 ND ND ND ND ND NS ----NS ------ND --NS --ND ----NS NS ----NS --NS NS NA NA NA 6/12/2003 3.8 ND ND ND 4.1 ND ----NS ------ND --ND --ND ----ND NS ----ND --ND ND NA NA NA 3/8/2004 ND ND ND ND ND ND ----ND ------ND --ND --ND ----ND ND ----ND --ND ND NA NA NA 12/1/2005 ND ND ND ND ND ND ----ND ------<0.5 --<0.5 --ND ----ND ND ----ND --ND ND NA NA NA 9/10/2008 6/17/2009 4/14/1998 ND ND ND ND ND NS ----NS ------0.07 --NS --ND ----NS NS ----NS --NS NS NA NA NA 6/12/2003 3/8/2004 12/1/2005 9/10/2008 6/17/2009 2/13/2020 <0.24 <0.23 <0.24 <0.50 <0.44 <0.66 NA <0.18 <0.35 <0.25 <0.35 <0.42 <0.23 <0.24 <0.26 <0.18 <0.33 <98.9 NA <0.24 NA NA NA <0.24 <0.26 <0.19 <0.23 <40.5 <17.6 NA 04/02/2021 <0.34 <0.48 <0.30 <0.34 <0.42 <0.64 NA <0.31 <0.49 <0.40 <0.35 <0.27 <0.35 <0.32 <0.36 <0.31 <72.2 NA <0.33 NA NA NA <0.34 <0.29 <0.50 <0.33 <36.4 <26.8 <2.7 Not Sampled - Could Not Locate Not Sampled - Could Not Locate Not Sampled - Could Not Locate Not Sampled - Could Not Locate Not Sampled - Could Not Locate MW-10 MW-11 MW-9 MW-8 Not Sampled - Could Not Locate MW-12 Not Sampled - Could Not Locate Not Sampled - Could Not Locate Not Sampled - Could Not Locate Not Sampled - Could Not Locate Not Sampled - Could Not Locate Not Sampled - Could Not Locate Not Sampled - Could Not Locate Not Sampled - Could Not Locate Page 4 of 5 Well ID Sample Date BenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthaleneAcetoneBromodichloromethanen-Butylbenzenesec-ButylbenzeneChloroformChloromethane1,2-Dibromoethane1,1-Dichloroethane1,2-Dichloroethane1,2-DichloropropaneDiisopropyl EtherEthanol2-HexanoneIsopropylbenzenep-Isopropyltoluene4-Methyl-2-pentanone (MIBK)Methyl Ethyl Ketonen-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenetert-Amyl Alcoholtert-Butyl Alcoholtert-Amylmethyl ether1 600 600 500 20 6 6,000 0.6 70 70 70 3 0.02 6 0.40 0.60 70 4,000 40 70 25 100 4,000 70 70 400 400 40 10 128 5,000 260,000 84,500 85,500 20,000 6,000 6,000,000 NE 6,900 8,500 70,000 3,000 50 6,000 400 600 70,000 4,000,000 40,000 25,000 11,700 100,000 4,000,000 30,000 70,000 28,500 25,000 40,000 10,000 12800 HAMPTONVILLE, YADKIN COUNTY, NORTH CAROLINA 2425 US HIGHWAY 21 WILLIAMS GROCERY 2L Standard GCL Standard NCDEQ INCIDENT #15063 HISTORICAL GROUNDWATER ANALYTICAL RESULTS TABLE 8 6/14/2010 31,000 46,000 3,500 16,800 23,000 1,300 2,400 <1.2 110 42 <2.1 <1.3 860 <1.5 <1.5 --560 <1,700 --200 --<1.9 2,900 1,300 150 4,000 1,200 NA NA NA 6/13/2012 2/24/2014 30,200 47,100 3,350 12,900 7,980 1,040 NA <50.0 <50.0 <50.0 <50.0 <100.0 998 <50.0 <50.0 --590 NA NA 118 NA NA NA 1,040 202 2,900 653 NA NA NA 10/3/2015 11/7/2017 69 9.5 2.2 37.4 27 4.3 J <50 <0.50 0.24 J <0.50 <0.50 <2.0 0.73 <0.50 23 0.96 6.0 NA <5.0 0.16 J <0.50 <5.0 <5.0 0.24 J <0.50 23 1.7 NA NA NA 5/6/2019 27,800 69,100 4,170 22,000 855 841 <10,000 <500 <500 <500 <500 <500 747 <500 811 <500 295 J NA <5,000 148 J <500 <2,500 <2,500 441 J <500 3,580 1,050 NA NA NA 6/6/2019 26,300 48,800 3,860 21,500 1,010 758 <2,000 <130 <130 <130 <130 <200 695 <130 790 <130 347 J <65,000 <1,000 175 J <130 <1,300 <1,300 487 J <130 3,550 1,050 NA NA NA 2/13/2020 1,200 202 28.5 161 57.9 20.1 NA <1.8 <3.5 <2.5 <3.5 <4.2 <2.3 <2.4 74.9 <1.8 28.7 <989 NA <2.4 NA NA NA 2.5J <2.6 16.8 9.4 2210 <176 NA 03/15/2021 17,000 39,600 4,920 24,400 252 2,580 NA <61.4 <98.0 <80.0 <70.6 NA 515 <73.4 337 <71.0 103 <14400 <95.2 396 NA NA <792 <68.0 117 12100 3100 <7280 <5360 <532 03/17/2021 15,400 41,400 3,800 21,400 717 1,210 NA <76.8 <122 <100 <88.2 NA 550 <87.0 408 <88.8 142 <18000 <119 188 NA NA NA <85.0 4870 4870 1330 <9100 <6700 <665 4/2/2021 AS-1 04/02/2021 11.1 5.2 1.0 20.7 24.4 2.3 NA <0.31 <0.49 <0.40 <0.35 NA 0.74 <0.35 24.9 0.49J 10 <72.2 NA <0.33 NA NA NA <0.34 <0.29 1.2 <0.33 2070 101 8.0J Notes: "<" or ND = Not Detected at or above the laboratory detection or reporting limit Concentrations are reported in micrograms per liter (µg/L) Italicized values indicate levels above GCLs J = Estimated value below method reporting limit NA = Not Analyzed GCL = Gross Contamination Level Concentrations in bold print equal or exceed the 15A NCAC 2L .0202 Groundwater Qualtiy Standard (2L Standard). RW-1 Not Sampled - LNAPL Not Sampled - LNAPL Not Sampled - LNAPL Page 5 of 5 FIGURES SITE CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO. TITLE DATE REFERENCE: USGS 7.5-MINUTE MAP, BROOKS CROSSROADS, NORTH CAROLINA. DATED 2016 LATITUDE:ƒ1257+ LONGITUDE:ƒ:(67 MW-1 RW-1 MW-3 MW-2 MW-5 MW-6 FORMER USTs FORMER USTs RESIDENCE FORMER RESIDENCE APARTMENTS FORMER WILLIAMS GROCERY US H IGHWAY 2 1 PETTY ROAD HAM P T O N VI L L E R O A D AS-1 MW-4 MW-12 CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO. TITLE DATE ASSOCIATES OF NORTH CAROLINA, P.C. C:\Users\robert.deppensmith\Desktop\CAD REFERENCES\ATC Logo_Full Color_CMYK.jpg EXPLANATION MONITORING WELL LOCATION AIR SPARGE WELL LOCATION 500'1,000' WSW-8 WSW-6 WSW-7 WSW-9 WSW-10 WSW-1 WSW-3WSW-5 WSW-2 WSW-4WSW-18 CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO. TITLE DATE EXPLANATION WATER SUPPLY WELL LOCATION IMAGE SOURCE: NC GEOSPATIAL DATABASE (2018) 3 LB NF 02/28/2021 SLP1506303 MW-1 RW-1 MW-3 MW-2 MW-5 MW-6 FORMER USTs FORMER USTs RESIDENCE FORMER RESIDENCE APARTMENTS FORMER WILLIAMS GROCERY US H IGHW A Y 2 1 PETTY ROAD HAM P T O N VI L L E R O A D AS-1 MW-4 MW-12 CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO. TITLE DATE ASSOCIATES OF NORTH CAROLINA, P.C. C:\Users\robert.deppensmith\Desktop\CAD REFERENCES\ATC Logo_Full Color_CMYK.jpg 480.09 479.24 480.14 479.49 480.07 480.00 EXPLANATION MONITORING WELL LOCATION GROUNDWATER FLOW DIRECTION GROUNDWATER CONTOUR LINE GROUNDWATER ELEVATION (AT WELL)478.50 Notes: 1.Groundwater levels measured 04/02/20. 2.Dashed lines indicate areas of less certainty. AIR SPARGE WELL LOCATION480.2480.0479.8479.6479.4480.4 480.47 480.22 MW-1 RW-1 MW-3 MW-2 MW-5 MW-6 RESIDENCE FORMER RESIDENCE FORMER WILLIAMS GROCERY US H IGHW A Y 2 1 HAM P T O N VI L L E R O A D AS-1 MW-4 MW-12 CAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO. TITLE DATE ASSOCIATES OF NORTH CAROLINA, P.C. C:\Users\robert.deppensmith\Desktop\CAD REFERENCES\ATC Logo_Full Color_CMYK.jpg EXPLANATION MONITORING WELL LOCATION Notes: 1.Groundwater samples collected on the date noted 2.Italicized values exceed the Gross Contamination Levels. 3.Concentrations exceeding the 2L Standards are shown. AIR SPARGE WELL LOCATION APPENDIX A MMPE SUBCONTRACTOR REPORT & WASTE DISPOSAL MANIFEST ADVANCED ENVIRONMENTAL SERVICES, INC. “Your Environmental Solutions Partner” MOBILE MULTI-PHASE EXTRACTION REPORT Site Location: Williams Grocery 2425 US Highway21 Hamptonville, North Carolina Prepared for: ATC Group Services 7606 Whiteville Executive Center Drive, Suite 800 Charlotte, North Carolina 28273 PM – Ms. Noelle France April 7, 2021 TABLE OF CONTENTS EVENT SUMMARY MMPE FIELD LOG MASS-REMOVAL CALCULATION FIELD NOTES DISPOSAL MANIFEST MOBILE MULTI-PHASE EXTRACTION EVENT SUMMARY April 7, 2021 Location: Williams Grocery 2425 US Highway 21 Hamptonville, North Carolina Client: ATC Group Services 7606 Whiteville Executive Center Drive, Suite 800 Charlotte, North Carolina 28273 Event Dates: March 15 - 19, 2021 Advanced Job # 03 – 2116 Advanced Personnel: Lee Heilig and Jonathan Kerr MMPE System: MMPE system rated 21”hg at 130 CFM 4’ discharge stack - 2” diameter 6,000 - gallon tanker Approximately 150’of 1.5” hose to 3 wells Extraction Well: MW-1, MW-3 and RW-1 Air-Sparge: AS-1 Well Initial FP/WL(ft) Final FP/WL(ft) Stinger depth(ft) Run Time MW-1 18.80 23.69 19 95.25 hours MW-3 19.41 21.01 20 96.00 hours RW-1 19.45 20.52 20 94.25 hours AS-1 19.65 29.28 NA 36.00 hours Description of Event: The MMPE event ran from 11:45 March 15, through 11:45 March 19, 2021. The MMPE system was active for 96.0 hours. During the event vacuum at the recovery pump ranged from 14.0 to 18.0 inches of mercury (hg) and stabilized at approximately 15.0 inches of mercury. Airflow rates ranged from 2,500 to 3,100 feet per minute and stabilized at 3,100 feet per minute. Due to excessive water recovery, flow was reduced 50 percent. System temperature ranged from 68.0 – 104.0 degrees (F) and humidity maintained 99.0 percent. Field gauged volatile organic compounds (VOC’s) decreased from 30,000 parts per-million (PPM) to 14,000 PPM throughout the event. Air Sparge operated 12 hours on 12 hours off for a total of 36.0 hours Groundwater / Product Mix Recovered: During the event, a total of 9,578 gallons of product/water mix were removed from the site and properly disposed at a certified North Carolina disposal facility. Total fluids recovered, was measured based on stick readings conducted during and following the event. Based on 96.0 hours of operation and a total of 9,578 gallons recovered, the average groundwater recovery rate was calculated to be approximately 99.77 gallons per hour. Events Results: Based on mass-removal calculations 287.51 pounds or 46.73 gallons of VOC’s were removed as vapor. Using Dwyer Magnehelic gauges, vacuum influence (inches of water) was measured at monitoring points MW-2 and MW-4. No measurable vacuum influence was observed at any monitoring point. Draw-down was observed in MW-4 at 0.19 feet. Following the event, no free product was identified in any well. MMPE FIELD LOG: CLIENT: ATC JOB NAME: Williams Grocery LOCATION: Hamptonville, NC MMPE EVENT DATES: March 15 - 19, 2021 EXTRACTION POINTS: MW-1, MW-3, RW-1 and Air-Sparge AS-1 AES JOB NUMBER: 03 - 2116 DATE TIME FLOW (f/m) HUM.(%) TEMP. (F)VOC's(ppm)VAC. (hg")GALLONS STINGER/WL's EXTRACTION POINTS (hg") MW-3 RW-1 MW-1 Stinger(ft)20 20 19 Start 11:45 Initial WL's 19.41 19.45 18.80 03/15/21 12:00 2,500 99.0 68 10,000 18.0 13.0 off-line off-line 13:25 3,000 99.0 87 30,000 15.0 9.0 8.0 9.0 14:40 3,000 99.0 89 30,000 15.0 9.0 4.0 9.0 15:50 3,000 99.0 97 28,000 15.0 516 gal.9.0 4.0 4.0 03/16/21 8:45 3,000 99.0 98 26,000 15.0 2,188 gal.4.0 4.0 4.0 10:45 3,000 99.0 94 28,000 15.0 4.0 4.0 4.0 12:45 3,000 99.0 96 26,000 15.0 4.0 4.0 4.0 15:00 3,000 99.0 97 26,000 15.0 4.0 4.0 4.0 03/17/21 9:00 3,000 99.0 94 22,000 15.0 3,984 gal.4.0 4.0 4.0 11:00 3,100 99.0 90 22,000 14.0 6.0 7.0 7.0 13:00 3,100 99.0 94 20,000 14.0 6.0 7.0 7.0 15:00 3,100 99.0 96 18,000 14.0 p/o 4,824 6.0 7.0 7.0 03/18/21 7:50 3,100 99.0 104 20,000 15.0 1,789 gal.6.0 7.0 7.0 9:30 3,100 99.0 100 18,000 15.0 6.0 7.0 7.0 11:00 3,100 99.0 98 16,000 15.0 6.0 7.0 7.0 13:00 3,100 99.0 102 18,000 15.0 6.0 7.0 7.0 03/19/21 8:45 3,100 99.0 88 16,000 15.0 4,289 gal.6.0 7.0 7.0 10:30 3,100 99.0 84 14,000 15.0 6.0 7.0 7.0 Final WL's 21.01 20.52 23.69 End 11:45 Total fluids: 9,578 gal. Total free product:0.0 DATE TIME STINGER/WL's AIR-SPARGE POINTS VACUUM INFLUENCE (h2o") WELL GAUGING (ft) AS-1 MW-2 MW-4 MW-2 MW-4 Start 11:45 Stinger(ft)n/a Initial WL's 19.65 18.82 19.21 03/15/21 14:40 0.00 0.00 03/16/21 10:45 4.0 12:45 3.5 0.00 0.00 18.79 19.11 15:00 4.0 03/17/21 9:00 off-line 11:00 4.0 13:00 4.0 15:00 4.0 0.00 0.00 18.78 19.08 03/18/21 7:50 off-line 9:30 4.0 11:00 4.0 0.00 0.00 18.41 19.31 13:00 4.0 03/19/21 8:45 off-line 0.00 0.00 18.23 19.40 10:30 4.0 Final WL's 29.28 End 11:45 Page 1 of 1 MOBILE MULTI-PHASE EXTRACTION EVENT SITE NAME: WILLIAMS GROCERY CLIENT: ATC ASSOCIATES INCIDENT NUMBER: AVERAGE DEPTH TO GROUNDWATER: 18 - 20 ft. DESCRIBE SOIL IN THE SATURATED ZONE: AVERAGE HYDRAULIC CONDUCTIVITY (if known): EXTRACTION WELLS USED FOR MMPE: MW-3, RW-1 and MW-1 AIR-SPARGE AS-1 SPECIFICATIONS OF THE MMPE SYSTEM (cfm @ in Hg): 130 cfm @ 21.0"Hg DRY STANDARD CUBIC FEET PER MINUTE (DSCFM) AIR FLOW CALCULATIONS (Qstd) Date Hours Vacuum Velocity Pipe ID Temp Rel Humid Water Water Qstd (inches of Hg)(ft/min)(in)(°F)(%)Vapor (Wt%)Vapor (Vol%)(flow) 3/15/21 24.00 16.00 2875.00 2 85 99.0 0.022 0.034 59 3/16/21 48.00 15.00 3000.00 2 96 99.0 0.035 0.053 59 3/17/21 72.00 14.00 3075.00 2 94 99.0 0.048 0.071 59 3/18/21 96.00 15.00 3100.00 2 96 99.0 0.048 0.071 60 3/19/21 NOTES Qstd = Flow at DSCFM Vacuum = The level of vacuum being applied should be recorded from the MMPE system (inches of Hg) Velocity = The rate at which air flows is measured at the blower discharge piping (anemometer or pitot tube) Pipe ID = The inside diameter of the blower discharge piping (from the MMPE system) Temperature = The temperature of the air stream exiting the blower discharge piping (dry bulb temp., in deg.°F) Relative humidity = The % relative humidity of the air stream exiting the blower discharge piping Bwsw = water vapor % by weight, i.e., pounds of water per pound of dry air, derived from the Psychrometric chart (temp Vs relative humidity) Bws = water vapor % by volume EQUATIONS Bws = (Bwsw/18 lb-mole H20)/[(1/28.84 lb-mole dry air) + (Bwsw/18 lb-mole H2O)] Qstd = (1-Water Vapor) * velocity * (PI * (diameter/24)2) * (528°R/(Temp + 460)) EMISSION CALCULATIONS Elapsed Time Flow PPMmeasured PPMwet PPMdry K PPMconc Cc:m Cc PMRc PMRg PMR (hour)(DSCFM)(ppm)(#C - gas)(mg/dsm3)(lb/dscf)(lb/hour)(lb/hour)(lb) 24 59 24500 24500 25364 1 25364 12655 0.00079008 2.78 3.22 77.29 48 59 26500 26500 27986 1 27986 13964 0.00087177 3.08 3.56 85.50 72 59 20500 20500 22077 1 22077 11015 0.00068769 2.45 2.84 68.04 96 60 17000 17000 18307 1 18307 9135 0.00057028 2.04 2.36 56.68 Total emissions in pounds 287.51 Total emissions as gallons (pounds / 6.152)46.73 NOTES PPMmeasured = Actual measurements (ppm) taken with a OVA or TVA at the blower discharge piping PPMwet = "wet" concentration PPMdry = "dry" concentration K = Number of carbons in calibration gas: (Methane K = 1, or Propane K = 3, or Hexane K = 6) PPMc= PPMv, Volumetric concentration of VOC emissions as carbon, dry basis at STP Cc:m = mg/dsm3, mass concentration of VOC emissions as carbon Mc = 12.01 mg/mg-mole, molecular weight of carbon K3 = 24.07 dsm3/106 mg-mole, mass to volume conversion factor at STP Cc = lb/dcsf, mass concentration of VOC emissions as carbon, dry basis at STP PMRc = lb/hr, pollutant mass removal rate of VOC's as carbon PMRg = lb/hr, pollutant mass removal rate of of VOC's as gasoline PMR = lb, pollutant mass removal of VOC's as gasoline EQUATIONS PPMwet = PPMmeasured PPMdry = (PPMwet)/(1-Bws) PPMc = (PPMd)(K) Cc:m = (PPMc)(Mc / K3) Cc = (Cc:m)(62.43x10-9 lb-m3/mg-ft3) PMRc = (Cc)(Qstd)(60 minute/hour) PMRg = (PMRc)(Mg/Mcg) PMR = (PMRg)(#hours) APPENDIX B FIELD NOTES APPENDIX C LABORATORY REPORT AND CHAIN-OF-CUSTODY DOCUMENTATION #=CL# March 22, 2021 LIMS USE: FR - NOELLE FRANCE LIMS OBJECT ID: 92527693 92527693 Project: Pace Project No.: RE: Noelle France ATC Group Services LLC- South Charlotte 7606 Whitehall Exe Center Dr Suite 800 Charlotte, NC 28273 WILLIAMS GROCERY Dear Noelle France: Enclosed are the analytical results for sample(s) received by the laboratory on March 15, 2021. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Bonnie Vang bonnie.vang@pacelabs.com Project Manager (704)875-9092 Enclosures cc:Al Quarles, ATC REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 27 #=CP# CERTIFICATIONS Pace Project No.: Project: 92527693 WILLIAMS GROCERY Pace Analytical Services Charlotte 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 Louisiana/NELAP Certification # LA170028 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 27 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92527693 WILLIAMS GROCERY Lab ID Sample ID Matrix Date Collected Date Received 92527693001 MW-1 Water 03/15/21 12:12 03/15/21 17:25 92527693002 MW-3 Water 03/15/21 11:20 03/15/21 17:25 92527693003 RW-1 Water 03/15/21 12:45 03/15/21 17:25 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 27 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92527693 WILLIAMS GROCERY Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92527693001 MW-1 SM 6200B 72 PASI-CSAS 92527693002 MW-3 SM 6200B 72 PASI-CSAS 92527693003 RW-1 SM 6200B 72 PASI-CSAS PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527693 WILLIAMS GROCERY Sample:MW-1 Lab ID:92527693001 Collected:03/15/21 12:12 Received:03/15/21 17:25 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol 17000J ug/L 03/18/21 08:18 75-85-4200007280200 tert-Amylmethyl ether <532 ug/L 03/18/21 08:18 994-05-82000532200 Benzene 11100 ug/L 03/18/21 08:18 71-43-210069.0 200 Bromobenzene <58.0 ug/L 03/18/21 08:18 108-86-110058.0 200 Bromochloromethane <93.6 ug/L 03/18/21 08:18 74-97-510093.6 200 Bromodichloromethane <61.4 ug/L 03/18/21 08:18 75-27-410061.4 200 Bromoform <68.2 ug/L 03/18/21 08:18 75-25-210068.2 200 Bromomethane <332 ug/L 03/18/21 08:18 74-83-91000332200 2-Butanone (MEK)2110 ug/L 03/18/21 08:18 78-93-31000792200 tert-Butyl Alcohol 15200 ug/L 03/18/21 08:18 75-65-0100005360200 n-Butylbenzene <98.0 ug/L 03/18/21 08:18 104-51-810098.0 200 sec-Butylbenzene <80.0 ug/L 03/18/21 08:18 135-98-810080.0 200 tert-Butylbenzene <64.6 ug/L 03/18/21 08:18 98-06-610064.6 200 tert-Butyl Formate <5880 ug/L 03/18/21 08:18 762-75-4100005880200 Carbon tetrachloride <66.6 ug/L 03/18/21 08:18 56-23-510066.6 200 Chlorobenzene <56.8 ug/L 03/18/21 08:18 108-90-710056.8 200 Chloroethane <130 ug/L 03/18/21 08:18 75-00-3200130200 Chloroform <70.6 ug/L 03/18/21 08:18 67-66-310070.6 200 Chloromethane <108 ug/L 03/18/21 08:18 74-87-3200108200 2-Chlorotoluene <64.2 ug/L 03/18/21 08:18 95-49-810064.2 200 4-Chlorotoluene <64.8 ug/L 03/18/21 08:18 106-43-410064.8 200 1,2-Dibromo-3-chloropropane <68.0 ug/L 03/18/21 08:18 96-12-820068.0 200 Dibromochloromethane <71.8 ug/L 03/18/21 08:18 124-48-110071.8 200 1,2-Dibromoethane (EDB)858 ug/L 03/18/21 08:18 106-93-410054.4 200 Dibromomethane <78.8 ug/L 03/18/21 08:18 74-95-310078.8 200 1,2-Dichlorobenzene <67.8 ug/L 03/18/21 08:18 95-50-110067.8 200 1,3-Dichlorobenzene <68.0 ug/L 03/18/21 08:18 541-73-110068.0 200 1,4-Dichlorobenzene <66.6 ug/L 03/18/21 08:18 106-46-710066.6 200 Dichlorodifluoromethane <69.2 ug/L 03/18/21 08:18 75-71-810069.2 200 1,1-Dichloroethane <73.4 ug/L 03/18/21 08:18 75-34-310073.4 200 1,2-Dichloroethane 1130 ug/L 03/18/21 08:18 107-06-210064.4 200 1,1-Dichloroethene <69.6 ug/L 03/18/21 08:18 75-35-410069.6 200 cis-1,2-Dichloroethene <76.8 ug/L 03/18/21 08:18 156-59-210076.8 200 trans-1,2-Dichloroethene <79.2 ug/L 03/18/21 08:18 156-60-510079.2 200 1,2-Dichloropropane <71.0 ug/L 03/18/21 08:18 78-87-510071.0 200 1,3-Dichloropropane <56.8 ug/L 03/18/21 08:18 142-28-910056.8 200 2,2-Dichloropropane <77.6 ug/L 03/18/21 08:18 594-20-710077.6 200 1,1-Dichloropropene <85.4 ug/L 03/18/21 08:18 563-58-610085.4 200 cis-1,3-Dichloropropene <73.0 ug/L 03/18/21 08:18 10061-01-510073.0 200 trans-1,3-Dichloropropene <72.6 ug/L 03/18/21 08:18 10061-02-610072.6 200 Diisopropyl ether 200 ug/L 03/18/21 08:18 108-20-310061.6 200 Ethanol <14400 ug/L 03/18/21 08:18 64-17-54000014400200 Ethylbenzene 1670 ug/L 03/18/21 08:18 100-41-410060.8 200 Ethyl-tert-butyl ether <648 ug/L 03/18/21 08:18 637-92-32000648200 Hexachloro-1,3-butadiene <306 ug/L 03/18/21 08:18 87-68-3400306200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527693 WILLIAMS GROCERY Sample:MW-1 Lab ID:92527693001 Collected:03/15/21 12:12 Received:03/15/21 17:25 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV 2-Hexanone 853J ug/L 03/18/21 08:18 591-78-6100095.2 200 Isopropylbenzene (Cumene)<66.6 ug/L 03/18/21 08:18 98-82-810066.6 200 Methylene Chloride <390 ug/L 03/18/21 08:18 75-09-2400390200 Methyl-tert-butyl ether 6700 ug/L 03/18/21 08:18 1634-04-410084.4 200 Naphthalene 815 ug/L 03/18/21 08:18 91-20-3400129200 n-Propylbenzene <68.0 ug/L 03/18/21 08:18 103-65-110068.0 200 Styrene <58.4 ug/L 03/18/21 08:18 100-42-510058.4 200 1,1,1,2-Tetrachloroethane <62.2 ug/L 03/18/21 08:18 630-20-610062.2 200 1,1,2,2-Tetrachloroethane <45.0 ug/L 03/18/21 08:18 79-34-510045.0 200 Tetrachloroethene <58.4 ug/L 03/18/21 08:18 127-18-410058.4 200 Toluene 18900 ug/L 03/18/21 08:18 108-88-310097.0 200 1,2,3-Trichlorobenzene <161 ug/L 03/18/21 08:18 87-61-6400161200 1,2,4-Trichlorobenzene <128 ug/L 03/18/21 08:18 120-82-1400128200 1,1,1-Trichloroethane <66.4 ug/L 03/18/21 08:18 71-55-610066.4 200 1,1,2-Trichloroethane <65.0 ug/L 03/18/21 08:18 79-00-510065.0 200 Trichloroethene <76.6 ug/L 03/18/21 08:18 79-01-610076.6 200 Trichlorofluoromethane <59.6 ug/L 03/18/21 08:18 75-69-420059.6 200 1,2,3-Trichloropropane <52.2 ug/L 03/18/21 08:18 96-18-410052.2 200 1,2,4-Trimethylbenzene 2670 ug/L 03/18/21 08:18 95-63-610099.0 200 1,3,5-Trimethylbenzene 773 ug/L 03/18/21 08:18 108-67-810066.4 200 Vinyl chloride <77.2 ug/L 03/18/21 08:18 75-01-420077.2 200 Xylene (Total)15700 ug/L 03/18/21 08:18 1330-20-720067.6 200 m&p-Xylene 10400 ug/L 03/18/21 08:18 179601-23-1200142200 o-Xylene 5240 ug/L 03/18/21 08:18 95-47-610067.6 200 Surrogates 1,2-Dichloroethane-d4 (S)99 %03/18/21 08:18 17060-07-070-130 200 4-Bromofluorobenzene (S)101 %03/18/21 08:18 460-00-470-130 200 Toluene-d8 (S)99 %03/18/21 08:18 2037-26-570-130 200 Sample:MW-3 Lab ID:92527693002 Collected:03/15/21 11:20 Received:03/15/21 17:25 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <9100 ug/L 03/18/21 08:54 75-85-4250009100250 tert-Amylmethyl ether <665 ug/L 03/18/21 08:54 994-05-82500665250 Benzene 15200 ug/L 03/18/21 08:54 71-43-212586.2 250 Bromobenzene <72.5 ug/L 03/18/21 08:54 108-86-112572.5 250 Bromochloromethane <117 ug/L 03/18/21 08:54 74-97-5125117250 Bromodichloromethane <76.8 ug/L 03/18/21 08:54 75-27-412576.8 250 Bromoform <85.2 ug/L 03/18/21 08:54 75-25-212585.2 250 Bromomethane <415 ug/L 03/18/21 08:54 74-83-91250415250 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527693 WILLIAMS GROCERY Sample:MW-3 Lab ID:92527693002 Collected:03/15/21 11:20 Received:03/15/21 17:25 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV 2-Butanone (MEK)<990 ug/L 03/18/21 08:54 78-93-31250990250 tert-Butyl Alcohol <6700 ug/L 03/18/21 08:54 75-65-0125006700250 n-Butylbenzene <122 ug/L 03/18/21 08:54 104-51-8125122250 sec-Butylbenzene <100 ug/L 03/18/21 08:54 135-98-8125100250 tert-Butylbenzene <80.8 ug/L 03/18/21 08:54 98-06-612580.8 250 tert-Butyl Formate <7350 ug/L 03/18/21 08:54 762-75-4125007350250 Carbon tetrachloride <83.2 ug/L 03/18/21 08:54 56-23-512583.2 250 Chlorobenzene <71.0 ug/L 03/18/21 08:54 108-90-712571.0 250 Chloroethane <162 ug/L 03/18/21 08:54 75-00-3250162250 Chloroform <88.2 ug/L 03/18/21 08:54 67-66-312588.2 250 Chloromethane <135 ug/L 03/18/21 08:54 74-87-3250135250 2-Chlorotoluene <80.2 ug/L 03/18/21 08:54 95-49-812580.2 250 4-Chlorotoluene <81.0 ug/L 03/18/21 08:54 106-43-412581.0 250 1,2-Dibromo-3-chloropropane <85.0 ug/L 03/18/21 08:54 96-12-825085.0 250 Dibromochloromethane <89.8 ug/L 03/18/21 08:54 124-48-112589.8 250 1,2-Dibromoethane (EDB)779 ug/L 03/18/21 08:54 106-93-412568.0 250 Dibromomethane <98.5 ug/L 03/18/21 08:54 74-95-312598.5 250 1,2-Dichlorobenzene <84.8 ug/L 03/18/21 08:54 95-50-112584.8 250 1,3-Dichlorobenzene <85.0 ug/L 03/18/21 08:54 541-73-112585.0 250 1,4-Dichlorobenzene <83.2 ug/L 03/18/21 08:54 106-46-712583.2 250 Dichlorodifluoromethane <86.5 ug/L 03/18/21 08:54 75-71-812586.5 250 1,1-Dichloroethane <91.8 ug/L 03/18/21 08:54 75-34-312591.8 250 1,2-Dichloroethane 220 ug/L 03/18/21 08:54 107-06-212580.5 250 1,1-Dichloroethene <87.0 ug/L 03/18/21 08:54 75-35-412587.0 250 cis-1,2-Dichloroethene <96.0 ug/L 03/18/21 08:54 156-59-212596.0 250 trans-1,2-Dichloroethene <99.0 ug/L 03/18/21 08:54 156-60-512599.0 250 1,2-Dichloropropane <88.8 ug/L 03/18/21 08:54 78-87-512588.8 250 1,3-Dichloropropane <71.0 ug/L 03/18/21 08:54 142-28-912571.0 250 2,2-Dichloropropane <97.0 ug/L 03/18/21 08:54 594-20-712597.0 250 1,1-Dichloropropene <107 ug/L 03/18/21 08:54 563-58-6125107250 cis-1,3-Dichloropropene <91.2 ug/L 03/18/21 08:54 10061-01-512591.2 250 trans-1,3-Dichloropropene <90.8 ug/L 03/18/21 08:54 10061-02-612590.8 250 Diisopropyl ether <77.0 ug/L 03/18/21 08:54 108-20-312577.0 250 Ethanol <18000 ug/L 03/18/21 08:54 64-17-55000018000250 Ethylbenzene 2260 ug/L 03/18/21 08:54 100-41-412576.0 250 Ethyl-tert-butyl ether <810 ug/L 03/18/21 08:54 637-92-32500810250 Hexachloro-1,3-butadiene <382 ug/L 03/18/21 08:54 87-68-3500382250 2-Hexanone 527J ug/L 03/18/21 08:54 591-78-61250119250 Isopropylbenzene (Cumene)102J ug/L 03/18/21 08:54 98-82-812583.2 250 Methylene Chloride <488 ug/L 03/18/21 08:54 75-09-2500488250 Methyl-tert-butyl ether <106 ug/L 03/18/21 08:54 1634-04-4125106250 Naphthalene 816 ug/L 03/18/21 08:54 91-20-3500161250 n-Propylbenzene <85.0 ug/L 03/18/21 08:54 103-65-112585.0 250 Styrene 79.0J ug/L 03/18/21 08:54 100-42-512573.0 250 1,1,1,2-Tetrachloroethane <77.8 ug/L 03/18/21 08:54 630-20-612577.8 250 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527693 WILLIAMS GROCERY Sample:MW-3 Lab ID:92527693002 Collected:03/15/21 11:20 Received:03/15/21 17:25 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV 1,1,2,2-Tetrachloroethane <56.2 ug/L 03/18/21 08:54 79-34-512556.2 250 Tetrachloroethene <73.0 ug/L 03/18/21 08:54 127-18-412573.0 250 Toluene 29400 ug/L 03/18/21 08:54 108-88-3125121250 1,2,3-Trichlorobenzene <202 ug/L 03/18/21 08:54 87-61-6500202250 1,2,4-Trichlorobenzene <160 ug/L 03/18/21 08:54 120-82-1500160250 1,1,1-Trichloroethane <83.0 ug/L 03/18/21 08:54 71-55-612583.0 250 1,1,2-Trichloroethane <81.2 ug/L 03/18/21 08:54 79-00-512581.2 250 Trichloroethene <95.8 ug/L 03/18/21 08:54 79-01-612595.8 250 Trichlorofluoromethane <74.5 ug/L 03/18/21 08:54 75-69-425074.5 250 1,2,3-Trichloropropane <65.2 ug/L 03/18/21 08:54 96-18-412565.2 250 1,2,4-Trimethylbenzene 2710 ug/L 03/18/21 08:54 95-63-6125124250 1,3,5-Trimethylbenzene 789 ug/L 03/18/21 08:54 108-67-812583.0 250 Vinyl chloride <96.5 ug/L 03/18/21 08:54 75-01-425096.5 250 Xylene (Total)17000 ug/L 03/18/21 08:54 1330-20-725084.5 250 m&p-Xylene 11100 ug/L 03/18/21 08:54 179601-23-1250177250 o-Xylene 5900 ug/L 03/18/21 08:54 95-47-612584.5 250 Surrogates 1,2-Dichloroethane-d4 (S)100 %03/18/21 08:54 17060-07-070-130 250 4-Bromofluorobenzene (S)101 %03/18/21 08:54 460-00-470-130 250 Toluene-d8 (S)99 %03/18/21 08:54 2037-26-570-130 250 Sample:RW-1 Lab ID:92527693003 Collected:03/15/21 12:45 Received:03/15/21 17:25 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <7280 ug/L 03/19/21 05:39 75-85-4200007280200 tert-Amylmethyl ether <532 ug/L 03/19/21 05:39 994-05-82000532200 Benzene 17000 ug/L 03/19/21 05:39 71-43-210069.0 200 Bromobenzene <58.0 ug/L 03/19/21 05:39 108-86-110058.0 200 Bromochloromethane <93.6 ug/L 03/19/21 05:39 74-97-510093.6 200 Bromodichloromethane <61.4 ug/L 03/19/21 05:39 75-27-410061.4 200 Bromoform <68.2 ug/L 03/19/21 05:39 75-25-210068.2 200 Bromomethane <332 ug/L 03/19/21 05:39 74-83-91000332200 2-Butanone (MEK)<792 ug/L 03/19/21 05:39 78-93-31000792200 tert-Butyl Alcohol <5360 ug/L 03/19/21 05:39 75-65-0100005360200 n-Butylbenzene <98.0 ug/L 03/19/21 05:39 104-51-810098.0 200 sec-Butylbenzene <80.0 ug/L 03/19/21 05:39 135-98-810080.0 200 tert-Butylbenzene <64.6 ug/L 03/19/21 05:39 98-06-610064.6 200 tert-Butyl Formate <5880 ug/L 03/19/21 05:39 762-75-4100005880200 Carbon tetrachloride <66.6 ug/L 03/19/21 05:39 56-23-510066.6 200 Chlorobenzene <56.8 ug/L 03/19/21 05:39 108-90-710056.8 200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527693 WILLIAMS GROCERY Sample:RW-1 Lab ID:92527693003 Collected:03/15/21 12:45 Received:03/15/21 17:25 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Chloroethane <130 ug/L 03/19/21 05:39 75-00-3200130200 Chloroform <70.6 ug/L 03/19/21 05:39 67-66-310070.6 200 Chloromethane <108 ug/L 03/19/21 05:39 74-87-3200108200 2-Chlorotoluene <64.2 ug/L 03/19/21 05:39 95-49-810064.2 200 4-Chlorotoluene <64.8 ug/L 03/19/21 05:39 106-43-410064.8 200 1,2-Dibromo-3-chloropropane <68.0 ug/L 03/19/21 05:39 96-12-820068.0 200 Dibromochloromethane <71.8 ug/L 03/19/21 05:39 124-48-110071.8 200 1,2-Dibromoethane (EDB)515 ug/L 03/19/21 05:39 106-93-410054.4 200 Dibromomethane <78.8 ug/L 03/19/21 05:39 74-95-310078.8 200 1,2-Dichlorobenzene <67.8 ug/L 03/19/21 05:39 95-50-110067.8 200 1,3-Dichlorobenzene <68.0 ug/L 03/19/21 05:39 541-73-110068.0 200 1,4-Dichlorobenzene <66.6 ug/L 03/19/21 05:39 106-46-710066.6 200 Dichlorodifluoromethane <69.2 ug/L 03/19/21 05:39 75-71-810069.2 200 1,1-Dichloroethane <73.4 ug/L 03/19/21 05:39 75-34-310073.4 200 1,2-Dichloroethane 337 ug/L 03/19/21 05:39 107-06-210064.4 200 1,1-Dichloroethene <69.6 ug/L 03/19/21 05:39 75-35-410069.6 200 cis-1,2-Dichloroethene <76.8 ug/L 03/19/21 05:39 156-59-210076.8 200 trans-1,2-Dichloroethene <79.2 ug/L 03/19/21 05:39 156-60-510079.2 200 1,2-Dichloropropane <71.0 ug/L 03/19/21 05:39 78-87-510071.0 200 1,3-Dichloropropane <56.8 ug/L 03/19/21 05:39 142-28-910056.8 200 2,2-Dichloropropane <77.6 ug/L 03/19/21 05:39 594-20-710077.6 200 1,1-Dichloropropene <85.4 ug/L 03/19/21 05:39 563-58-610085.4 200 cis-1,3-Dichloropropene <73.0 ug/L 03/19/21 05:39 10061-01-510073.0 200 trans-1,3-Dichloropropene <72.6 ug/L 03/19/21 05:39 10061-02-610072.6 200 Diisopropyl ether 103 ug/L 03/19/21 05:39 108-20-310061.6 200 Ethanol <14400 ug/L 03/19/21 05:39 64-17-54000014400200 Ethylbenzene 4920 ug/L 03/19/21 05:39 100-41-410060.8 200 Ethyl-tert-butyl ether <648 ug/L 03/19/21 05:39 637-92-32000648200 Hexachloro-1,3-butadiene <306 ug/L 03/19/21 05:39 87-68-3400306200 2-Hexanone <95.2 ug/L 03/19/21 05:39 591-78-6100095.2 200 Isopropylbenzene (Cumene)396 ug/L 03/19/21 05:39 98-82-810066.6 200 Methylene Chloride <390 ug/L 03/19/21 05:39 75-09-2400390200 Methyl-tert-butyl ether 252 ug/L 03/19/21 05:39 1634-04-410084.4 200 Naphthalene 2580 ug/L 03/19/21 05:39 91-20-3400129200 n-Propylbenzene <68.0 ug/L 03/19/21 05:39 103-65-110068.0 200 Styrene 117 ug/L 03/19/21 05:39 100-42-510058.4 200 1,1,1,2-Tetrachloroethane <62.2 ug/L 03/19/21 05:39 630-20-610062.2 200 1,1,2,2-Tetrachloroethane <45.0 ug/L 03/19/21 05:39 79-34-510045.0 200 Tetrachloroethene <58.4 ug/L 03/19/21 05:39 127-18-410058.4 200 Toluene 39600 ug/L 03/19/21 05:39 108-88-310097.0 200 1,2,3-Trichlorobenzene <161 ug/L 03/19/21 05:39 87-61-6400161200 1,2,4-Trichlorobenzene <128 ug/L 03/19/21 05:39 120-82-1400128200 1,1,1-Trichloroethane <66.4 ug/L 03/19/21 05:39 71-55-610066.4 200 1,1,2-Trichloroethane <65.0 ug/L 03/19/21 05:39 79-00-510065.0 200 Trichloroethene <76.6 ug/L 03/19/21 05:39 79-01-610076.6 200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92527693 WILLIAMS GROCERY Sample:RW-1 Lab ID:92527693003 Collected:03/15/21 12:45 Received:03/15/21 17:25 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Trichlorofluoromethane <59.6 ug/L 03/19/21 05:39 75-69-420059.6 200 1,2,3-Trichloropropane <52.2 ug/L 03/19/21 05:39 96-18-410052.2 200 1,2,4-Trimethylbenzene 12100 ug/L 03/19/21 05:39 95-63-610099.0 200 1,3,5-Trimethylbenzene 3100 ug/L 03/19/21 05:39 108-67-810066.4 200 Vinyl chloride <77.2 ug/L 03/19/21 05:39 75-01-420077.2 200 Xylene (Total)24400 ug/L 03/19/21 05:39 1330-20-720067.6 200 m&p-Xylene 17000 ug/L 03/19/21 05:39 179601-23-1200142200 o-Xylene 7420 ug/L 03/19/21 05:39 95-47-610067.6 200 Surrogates 1,2-Dichloroethane-d4 (S)95 %03/19/21 05:39 17060-07-070-130 200 4-Bromofluorobenzene (S)96 %03/19/21 05:39 460-00-470-130 200 Toluene-d8 (S)99 %03/19/21 05:39 2037-26-570-130 200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527693 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 607343 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92527693001, 92527693002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3199716 Associated Lab Samples:92527693001, 92527693002 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.31 0.50 03/18/21 02:380.31 1,1,1-Trichloroethane ug/L <0.33 0.50 03/18/21 02:380.33 1,1,2,2-Tetrachloroethane ug/L <0.22 0.50 03/18/21 02:380.22 1,1,2-Trichloroethane ug/L <0.32 0.50 03/18/21 02:380.32 1,1-Dichloroethane ug/L <0.37 0.50 03/18/21 02:380.37 1,1-Dichloroethene ug/L <0.35 0.50 03/18/21 02:380.35 1,1-Dichloropropene ug/L <0.43 0.50 03/18/21 02:380.43 1,2,3-Trichlorobenzene ug/L <0.81 2.0 03/18/21 02:380.81 1,2,3-Trichloropropane ug/L <0.26 0.50 03/18/21 02:380.26 1,2,4-Trichlorobenzene ug/L <0.64 2.0 03/18/21 02:380.64 1,2,4-Trimethylbenzene ug/L <0.50 0.50 03/18/21 02:380.50 1,2-Dibromo-3-chloropropane ug/L <0.34 1.0 03/18/21 02:380.34 1,2-Dibromoethane (EDB)ug/L <0.27 0.50 03/18/21 02:380.27 1,2-Dichlorobenzene ug/L <0.34 0.50 03/18/21 02:380.34 1,2-Dichloroethane ug/L <0.32 0.50 03/18/21 02:380.32 1,2-Dichloropropane ug/L <0.36 0.50 03/18/21 02:380.36 1,3,5-Trimethylbenzene ug/L <0.33 0.50 03/18/21 02:380.33 1,3-Dichlorobenzene ug/L <0.34 0.50 03/18/21 02:380.34 1,3-Dichloropropane ug/L <0.28 0.50 03/18/21 02:380.28 1,4-Dichlorobenzene ug/L <0.33 0.50 03/18/21 02:380.33 2,2-Dichloropropane ug/L <0.39 0.50 03/18/21 02:380.39 2-Butanone (MEK)ug/L <4.0 5.0 03/18/21 02:384.0 2-Chlorotoluene ug/L <0.32 0.50 03/18/21 02:380.32 2-Hexanone ug/L <0.48 5.0 03/18/21 02:380.48 4-Chlorotoluene ug/L <0.32 0.50 03/18/21 02:380.32 Benzene ug/L <0.34 0.50 03/18/21 02:380.34 Bromobenzene ug/L <0.29 0.50 03/18/21 02:380.29 Bromochloromethane ug/L <0.47 0.50 03/18/21 02:380.47 Bromodichloromethane ug/L <0.31 0.50 03/18/21 02:380.31 Bromoform ug/L <0.34 0.50 03/18/21 02:380.34 Bromomethane ug/L <1.7 5.0 03/18/21 02:381.7 Carbon tetrachloride ug/L <0.33 0.50 03/18/21 02:380.33 Chlorobenzene ug/L <0.28 0.50 03/18/21 02:380.28 Chloroethane ug/L <0.65 1.0 03/18/21 02:380.65 Chloroform ug/L <0.35 0.50 03/18/21 02:380.35 Chloromethane ug/L <0.54 1.0 03/18/21 02:380.54 cis-1,2-Dichloroethene ug/L <0.38 0.50 03/18/21 02:380.38 cis-1,3-Dichloropropene ug/L <0.36 0.50 03/18/21 02:380.36 Dibromochloromethane ug/L <0.36 0.50 03/18/21 02:380.36 Dibromomethane ug/L <0.39 0.50 03/18/21 02:380.39 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527693 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3199716 Associated Lab Samples:92527693001, 92527693002 Matrix:Water AnalyzedMDL Dichlorodifluoromethane ug/L <0.35 0.50 03/18/21 02:380.35 Diisopropyl ether ug/L <0.31 0.50 03/18/21 02:380.31 Ethanol ug/L <72.2 200 03/18/21 02:3872.2 Ethyl-tert-butyl ether ug/L <3.2 10.0 03/18/21 02:383.2 Ethylbenzene ug/L <0.30 0.50 03/18/21 02:380.30 Hexachloro-1,3-butadiene ug/L <1.5 2.0 03/18/21 02:381.5 Isopropylbenzene (Cumene)ug/L <0.33 0.50 03/18/21 02:380.33 m&p-Xylene ug/L <0.71 1.0 03/18/21 02:380.71 Methyl-tert-butyl ether ug/L <0.42 0.50 03/18/21 02:380.42 Methylene Chloride ug/L <2.0 2.0 03/18/21 02:382.0 n-Butylbenzene ug/L <0.49 0.50 03/18/21 02:380.49 n-Propylbenzene ug/L <0.34 0.50 03/18/21 02:380.34 Naphthalene ug/L <0.64 2.0 03/18/21 02:380.64 o-Xylene ug/L <0.34 0.50 03/18/21 02:380.34 sec-Butylbenzene ug/L <0.40 0.50 03/18/21 02:380.40 Styrene ug/L <0.29 0.50 03/18/21 02:380.29 tert-Amyl Alcohol ug/L <36.4 100 03/18/21 02:3836.4 tert-Amylmethyl ether ug/L <2.7 10.0 03/18/21 02:382.7 tert-Butyl Alcohol ug/L <26.8 50.0 03/18/21 02:3826.8 tert-Butyl Formate ug/L <29.4 50.0 03/18/21 02:3829.4 tert-Butylbenzene ug/L <0.32 0.50 03/18/21 02:380.32 Tetrachloroethene ug/L <0.29 0.50 03/18/21 02:380.29 Toluene ug/L <0.48 0.50 03/18/21 02:380.48 trans-1,2-Dichloroethene ug/L <0.40 0.50 03/18/21 02:380.40 trans-1,3-Dichloropropene ug/L <0.36 0.50 03/18/21 02:380.36 Trichloroethene ug/L <0.38 0.50 03/18/21 02:380.38 Trichlorofluoromethane ug/L <0.30 1.0 03/18/21 02:380.30 Vinyl chloride ug/L <0.39 1.0 03/18/21 02:380.39 Xylene (Total)ug/L <0.34 1.0 03/18/21 02:380.34 1,2-Dichloroethane-d4 (S)%99 70-130 03/18/21 02:38 4-Bromofluorobenzene (S)%101 70-130 03/18/21 02:38 Toluene-d8 (S)%100 70-130 03/18/21 02:38 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3199717LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 56.650 113 60-140 1,1,1-Trichloroethane ug/L 49.250 98 60-140 1,1,2,2-Tetrachloroethane ug/L 55.150 110 60-140 1,1,2-Trichloroethane ug/L 55.150 110 60-140 1,1-Dichloroethane ug/L 48.350 97 60-140 1,1-Dichloroethene ug/L 50.650 101 60-140 1,1-Dichloropropene ug/L 50.650 101 60-140 1,2,3-Trichlorobenzene ug/L 53.350 107 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527693 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3199717LABORATORY CONTROL SAMPLE: LCSSpike 1,2,3-Trichloropropane ug/L 54.250 108 60-140 1,2,4-Trichlorobenzene ug/L 53.850 108 60-140 1,2,4-Trimethylbenzene ug/L 52.650 105 60-140 1,2-Dibromo-3-chloropropane ug/L 55.350 111 60-140 1,2-Dibromoethane (EDB)ug/L 56.750 113 60-140 1,2-Dichlorobenzene ug/L 50.950 102 60-140 1,2-Dichloroethane ug/L 50.450 101 60-140 1,2-Dichloropropane ug/L 52.150 104 60-140 1,3,5-Trimethylbenzene ug/L 52.350 105 60-140 1,3-Dichlorobenzene ug/L 51.450 103 60-140 1,3-Dichloropropane ug/L 53.850 108 60-140 1,4-Dichlorobenzene ug/L 50.450 101 60-140 2,2-Dichloropropane ug/L 47.250 94 60-140 2-Butanone (MEK)ug/L 107100 107 60-140 2-Chlorotoluene ug/L 50.950 102 60-140 2-Hexanone ug/L 112100 112 60-140 4-Chlorotoluene ug/L 50.450 101 60-140 Benzene ug/L 50.550 101 60-140 Bromobenzene ug/L 49.150 98 60-140 Bromochloromethane ug/L 51.050 102 60-140 Bromodichloromethane ug/L 53.250 106 60-140 Bromoform ug/L 45.950 92 60-140 Bromomethane ug/L 46.850 94 60-140 Carbon tetrachloride ug/L 53.250 106 60-140 Chlorobenzene ug/L 52.350 105 60-140 Chloroethane ug/L 43.550 87 60-140 Chloroform ug/L 49.150 98 60-140 Chloromethane ug/L 39.650 79 60-140 cis-1,2-Dichloroethene ug/L 46.650 93 60-140 cis-1,3-Dichloropropene ug/L 55.950 112 60-140 Dibromochloromethane ug/L 56.250 112 60-140 Dibromomethane ug/L 55.650 111 60-140 Dichlorodifluoromethane ug/L 45.450 91 60-140 Diisopropyl ether ug/L 46.350 93 60-140 Ethanol ug/L 19402000 97 60-140 Ethyl-tert-butyl ether ug/L 95.7100 96 60-140 Ethylbenzene ug/L 51.950 104 60-140 Hexachloro-1,3-butadiene ug/L 52.150 104 60-140 Isopropylbenzene (Cumene)ug/L 53.350 107 60-140 m&p-Xylene ug/L 103100 103 60-140 Methyl-tert-butyl ether ug/L 50.850 102 60-140 Methylene Chloride ug/L 43.950 88 60-140 n-Butylbenzene ug/L 55.250 110 60-140 n-Propylbenzene ug/L 50.250 100 60-140 Naphthalene ug/L 53.750 107 60-140 o-Xylene ug/L 52.550 105 60-140 sec-Butylbenzene ug/L 51.650 103 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527693 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3199717LABORATORY CONTROL SAMPLE: LCSSpike Styrene ug/L 52.750 105 60-140 tert-Amyl Alcohol ug/L 11801000 118 60-140 tert-Amylmethyl ether ug/L 105100 105 60-140 tert-Butyl Alcohol ug/L 560500 112 60-140 tert-Butyl Formate ug/L 294400 73 60-140 tert-Butylbenzene ug/L 42.550 85 60-140 Tetrachloroethene ug/L 52.150 104 60-140 Toluene ug/L 51.650 103 60-140 trans-1,2-Dichloroethene ug/L 47.650 95 60-140 trans-1,3-Dichloropropene ug/L 54.250 108 60-140 Trichloroethene ug/L 52.350 105 60-140 Trichlorofluoromethane ug/L 45.250 90 60-140 Vinyl chloride ug/L 43.050 86 60-140 Xylene (Total)ug/L 156150 104 60-140 1,2-Dichloroethane-d4 (S)%94 70-130 4-Bromofluorobenzene (S)%99 70-130 Toluene-d8 (S)%99 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 3199718MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92527693002 3199719 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 5000 110 60-140109 1 305000<77.8 5520 5470 1,1,1-Trichloroethane ug/L 5000 108 60-140109 1 305000<83.0 5390 5470 1,1,2,2-Tetrachloroethane ug/L 5000 110 60-140108 2 305000<56.2 5520 5390 1,1,2-Trichloroethane ug/L 5000 109 60-140111 1 305000<81.2 5470 5540 1,1-Dichloroethane ug/L 5000 103 60-140105 1 305000<91.8 5160 5230 1,1-Dichloroethene ug/L 5000 110 60-140111 1 305000<87.0 5510 5560 1,1-Dichloropropene ug/L 5000 111 60-140114 2 305000<107 5550 5680 1,2,3-Trichlorobenzene ug/L 5000 104 60-140107 2 305000<202 5220 5330 1,2,3-Trichloropropane ug/L 5000 112 60-140106 5 305000<65.2 5600 5320 1,2,4-Trichlorobenzene ug/L 5000 105 60-140107 2 305000<160 5230 5340 1,2,4-Trimethylbenzene ug/L 5000 120 60-140114 4 305000271086908380 1,2-Dibromo-3- chloropropane ug/L 5000 108 60-140109 0 305000<85.0 5410 5440 1,2-Dibromoethane (EDB)ug/L 5000 118 60-140113 3 30500077966606430 1,2-Dichlorobenzene ug/L 5000 111 60-140104 7 305000<84.8 5560 5180 1,2-Dichloroethane ug/L 5000 105 60-140109 3 30500022054805660 1,2-Dichloropropane ug/L 5000 108 60-140108 1 305000<88.8 5380 5420 1,3,5-Trimethylbenzene ug/L 5000 113 60-140111 2 30500078964606320 1,3-Dichlorobenzene ug/L 5000 110 60-140107 3 305000<85.0 5520 5370 1,3-Dichloropropane ug/L 5000 107 60-140107 0 305000<71.0 5330 5340 1,4-Dichlorobenzene ug/L 5000 106 60-140105 1 305000<83.2 5310 5270 2,2-Dichloropropane ug/L 5000 84 60-14085 1 305000<97.0 4190 4240 2-Butanone (MEK)ug/L 10000 107 60-140107 0 3010000<990 11200 11100 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527693 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3199718MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92527693002 3199719 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 2-Chlorotoluene ug/L 5000 110 60-140108 2 305000<80.2 5510 5420 2-Hexanone ug/L 10000 111 60-140108 2 3010000527J1160011400 4-Chlorotoluene ug/L 5000 109 60-140106 3 305000<81.0 5440 5280 Benzene ug/L 5000 107 60-140117 2 305000152002050021000 Bromobenzene ug/L 5000 106 60-140102 5 305000<72.5 5310 5080 Bromochloromethane ug/L 5000 114 60-140108 5 305000<117 5690 5390 Bromodichloromethane ug/L 5000 107 60-140107 0 305000<76.8 5360 5370 Bromoform ug/L 5000 94 60-14091 3 305000<85.2 4690 4560 Bromomethane ug/L 5000 92 60-14097 6 305000<415 4590 4860 Carbon tetrachloride ug/L 5000 114 60-140118 3 305000<83.2 5720 5890 Chlorobenzene ug/L 5000 108 60-140108 0 305000<71.0 5380 5390 Chloroethane ug/L 5000 102 60-140104 2 305000<162 5100 5200 Chloroform ug/L 5000 104 60-140108 4 305000<88.2 5200 5400 Chloromethane ug/L 5000 87 60-14089 1 305000<135 4360 4430 cis-1,2-Dichloroethene ug/L 5000 101 60-140103 2 305000<96.0 5070 5160 cis-1,3-Dichloropropene ug/L 5000 107 60-140108 2 305000<91.2 5330 5420 Dibromochloromethane ug/L 5000 106 60-140108 2 305000<89.8 5300 5410 Dibromomethane ug/L 5000 114 60-140112 2 305000<98.5 5700 5590 Dichlorodifluoromethane ug/L 5000 92 60-14092 0 305000<86.5 4600 4590 Diisopropyl ether ug/L 5000 98 60-14096 2 305000<77.0 4930 4850 Ethanol ug/L 200000 97 60-140105 8 30200000<18000 194000 209000 Ethyl-tert-butyl ether ug/L 10000 99 60-14098 1 3010000<810 9890 9820 Ethylbenzene ug/L 5000 111 60-140112 0 305000226078307860 Hexachloro-1,3-butadiene ug/L 5000 96 60-140105 8 305000<382 4810 5230 Isopropylbenzene (Cumene) ug/L 5000 111 60-140112 1 305000102J56505700 m&p-Xylene ug/L 10000 107 60-140105 1 3010000111002180021500 Methyl-tert-butyl ether ug/L 5000 103 60-140104 2 305000<106 5190 5270 Methylene Chloride ug/L 5000 94 60-14094 0 305000<488 4690 4680 n-Butylbenzene ug/L 5000 111 60-140112 1 305000<122 5540 5580 n-Propylbenzene ug/L 5000 115 60-140111 3 305000<85.0 5750 5550 Naphthalene ug/L 5000 108 60-140107 1 30500081662206180 o-Xylene ug/L 5000 112 60-140110 1 30500059001150011400 sec-Butylbenzene ug/L 5000 108 60-140111 3 305000<100 5420 5550 Styrene ug/L 5000 109 60-140109 0 30500079.0J 5540 5530 tert-Amyl Alcohol ug/L 100000 122 60-140121 1 30100000<9100 122000 121000 tert-Amylmethyl ether ug/L 10000 107 60-140106 1 3010000<665 10700 10600 tert-Butyl Alcohol ug/L 50000 110 60-140112 1 3050000<6700 55700 56400 tert-Butyl Formate ug/L 40000 76 60-14077 1 3040000<7350 30600 30900 tert-Butylbenzene ug/L 5000 90 60-14090 1 305000<80.8 4520 4480 Tetrachloroethene ug/L 5000 110 60-140105 5 305000<73.0 5520 5250 Toluene ug/L 5000 109 60-140115 1 305000294003490035200 trans-1,2-Dichloroethene ug/L 5000 105 60-140106 1 305000<99.0 5230 5310 trans-1,3-Dichloropropene ug/L 5000 104 60-140103 0 305000<90.8 5180 5160 Trichloroethene ug/L 5000 113 60-140113 0 305000<95.8 5650 5660 Trichlorofluoromethane ug/L 5000 101 60-140102 1 305000<74.5 5030 5100 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527693 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3199718MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92527693002 3199719 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Vinyl chloride ug/L 5000 90 60-14091 1 305000<96.5 4510 4550 Xylene (Total)ug/L 15000 109 60-140106 1 3015000170003320032900 1,2-Dichloroethane-d4 (S)%94 70-13097 4-Bromofluorobenzene (S)%96 70-13099 Toluene-d8 (S)%98 70-13098 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527693 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 607642 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92527693003 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3201003 Associated Lab Samples:92527693003 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.31 0.50 03/19/21 00:320.31 1,1,1-Trichloroethane ug/L <0.33 0.50 03/19/21 00:320.33 1,1,2,2-Tetrachloroethane ug/L <0.22 0.50 03/19/21 00:320.22 1,1,2-Trichloroethane ug/L <0.32 0.50 03/19/21 00:320.32 1,1-Dichloroethane ug/L <0.37 0.50 03/19/21 00:320.37 1,1-Dichloroethene ug/L <0.35 0.50 03/19/21 00:320.35 1,1-Dichloropropene ug/L <0.43 0.50 03/19/21 00:320.43 1,2,3-Trichlorobenzene ug/L <0.81 2.0 03/19/21 00:320.81 1,2,3-Trichloropropane ug/L <0.26 0.50 03/19/21 00:320.26 1,2,4-Trichlorobenzene ug/L <0.64 2.0 03/19/21 00:320.64 1,2,4-Trimethylbenzene ug/L <0.50 0.50 03/19/21 00:320.50 1,2-Dibromo-3-chloropropane ug/L <0.34 1.0 03/19/21 00:320.34 1,2-Dibromoethane (EDB)ug/L <0.27 0.50 03/19/21 00:320.27 1,2-Dichlorobenzene ug/L <0.34 0.50 03/19/21 00:320.34 1,2-Dichloroethane ug/L <0.32 0.50 03/19/21 00:320.32 1,2-Dichloropropane ug/L <0.36 0.50 03/19/21 00:320.36 1,3,5-Trimethylbenzene ug/L <0.33 0.50 03/19/21 00:320.33 1,3-Dichlorobenzene ug/L <0.34 0.50 03/19/21 00:320.34 1,3-Dichloropropane ug/L <0.28 0.50 03/19/21 00:320.28 1,4-Dichlorobenzene ug/L <0.33 0.50 03/19/21 00:320.33 2,2-Dichloropropane ug/L <0.39 0.50 03/19/21 00:320.39 2-Butanone (MEK)ug/L <4.0 5.0 03/19/21 00:324.0 2-Chlorotoluene ug/L <0.32 0.50 03/19/21 00:320.32 2-Hexanone ug/L <0.48 5.0 03/19/21 00:320.48 4-Chlorotoluene ug/L <0.32 0.50 03/19/21 00:320.32 Benzene ug/L <0.34 0.50 03/19/21 00:320.34 Bromobenzene ug/L <0.29 0.50 03/19/21 00:320.29 Bromochloromethane ug/L <0.47 0.50 03/19/21 00:320.47 Bromodichloromethane ug/L <0.31 0.50 03/19/21 00:320.31 Bromoform ug/L <0.34 0.50 03/19/21 00:320.34 Bromomethane ug/L <1.7 5.0 03/19/21 00:321.7 Carbon tetrachloride ug/L <0.33 0.50 03/19/21 00:320.33 Chlorobenzene ug/L <0.28 0.50 03/19/21 00:320.28 Chloroethane ug/L <0.65 1.0 03/19/21 00:320.65 Chloroform ug/L <0.35 0.50 03/19/21 00:320.35 Chloromethane ug/L <0.54 1.0 03/19/21 00:320.54 cis-1,2-Dichloroethene ug/L <0.38 0.50 03/19/21 00:320.38 cis-1,3-Dichloropropene ug/L <0.36 0.50 03/19/21 00:320.36 Dibromochloromethane ug/L <0.36 0.50 03/19/21 00:320.36 Dibromomethane ug/L <0.39 0.50 03/19/21 00:320.39 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527693 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3201003 Associated Lab Samples:92527693003 Matrix:Water AnalyzedMDL Dichlorodifluoromethane ug/L <0.35 0.50 03/19/21 00:320.35 Diisopropyl ether ug/L <0.31 0.50 03/19/21 00:320.31 Ethanol ug/L <72.2 200 03/19/21 00:3272.2 Ethyl-tert-butyl ether ug/L <3.2 10.0 03/19/21 00:323.2 Ethylbenzene ug/L <0.30 0.50 03/19/21 00:320.30 Hexachloro-1,3-butadiene ug/L <1.5 2.0 03/19/21 00:321.5 Isopropylbenzene (Cumene)ug/L <0.33 0.50 03/19/21 00:320.33 m&p-Xylene ug/L <0.71 1.0 03/19/21 00:320.71 Methyl-tert-butyl ether ug/L <0.42 0.50 03/19/21 00:320.42 Methylene Chloride ug/L <2.0 2.0 03/19/21 00:322.0 n-Butylbenzene ug/L <0.49 0.50 03/19/21 00:320.49 n-Propylbenzene ug/L <0.34 0.50 03/19/21 00:320.34 Naphthalene ug/L <0.64 2.0 03/19/21 00:320.64 o-Xylene ug/L <0.34 0.50 03/19/21 00:320.34 sec-Butylbenzene ug/L <0.40 0.50 03/19/21 00:320.40 Styrene ug/L <0.29 0.50 03/19/21 00:320.29 tert-Amyl Alcohol ug/L <36.4 100 03/19/21 00:3236.4 tert-Amylmethyl ether ug/L <2.7 10.0 03/19/21 00:322.7 tert-Butyl Alcohol ug/L <26.8 50.0 03/19/21 00:3226.8 tert-Butyl Formate ug/L <29.4 50.0 03/19/21 00:3229.4 tert-Butylbenzene ug/L <0.32 0.50 03/19/21 00:320.32 Tetrachloroethene ug/L <0.29 0.50 03/19/21 00:320.29 Toluene ug/L <0.48 0.50 03/19/21 00:320.48 trans-1,2-Dichloroethene ug/L <0.40 0.50 03/19/21 00:320.40 trans-1,3-Dichloropropene ug/L <0.36 0.50 03/19/21 00:320.36 Trichloroethene ug/L <0.38 0.50 03/19/21 00:320.38 Trichlorofluoromethane ug/L <0.30 1.0 03/19/21 00:320.30 Vinyl chloride ug/L <0.39 1.0 03/19/21 00:320.39 Xylene (Total)ug/L <0.34 1.0 03/19/21 00:320.34 1,2-Dichloroethane-d4 (S)%97 70-130 03/19/21 00:32 4-Bromofluorobenzene (S)%94 70-130 03/19/21 00:32 Toluene-d8 (S)%100 70-130 03/19/21 00:32 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3201004LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 48.550 97 60-140 1,1,1-Trichloroethane ug/L 44.250 88 60-140 1,1,2,2-Tetrachloroethane ug/L 46.950 94 60-140 1,1,2-Trichloroethane ug/L 47.150 94 60-140 1,1-Dichloroethane ug/L 44.350 89 60-140 1,1-Dichloroethene ug/L 46.450 93 60-140 1,1-Dichloropropene ug/L 45.350 91 60-140 1,2,3-Trichlorobenzene ug/L 49.050 98 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527693 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3201004LABORATORY CONTROL SAMPLE: LCSSpike 1,2,3-Trichloropropane ug/L 49.750 99 60-140 1,2,4-Trichlorobenzene ug/L 49.750 99 60-140 1,2,4-Trimethylbenzene ug/L 47.650 95 60-140 1,2-Dibromo-3-chloropropane ug/L 49.450 99 60-140 1,2-Dibromoethane (EDB)ug/L 48.250 96 60-140 1,2-Dichlorobenzene ug/L 49.550 99 60-140 1,2-Dichloroethane ug/L 41.350 83 60-140 1,2-Dichloropropane ug/L 43.550 87 60-140 1,3,5-Trimethylbenzene ug/L 46.450 93 60-140 1,3-Dichlorobenzene ug/L 50.250 100 60-140 1,3-Dichloropropane ug/L 47.150 94 60-140 1,4-Dichlorobenzene ug/L 50.450 101 60-140 2,2-Dichloropropane ug/L 45.650 91 60-140 2-Butanone (MEK)ug/L 84.1100 84 60-140 2-Chlorotoluene ug/L 46.950 94 60-140 2-Hexanone ug/L 90.5100 90 60-140 4-Chlorotoluene ug/L 45.950 92 60-140 Benzene ug/L 45.350 91 60-140 Bromobenzene ug/L 47.150 94 60-140 Bromochloromethane ug/L 47.650 95 60-140 Bromodichloromethane ug/L 43.350 87 60-140 Bromoform ug/L 48.050 96 60-140 Bromomethane ug/L 47.950 96 60-140 Carbon tetrachloride ug/L 48.850 98 60-140 Chlorobenzene ug/L 49.450 99 60-140 Chloroethane ug/L 43.350 87 60-140 Chloroform ug/L 43.250 86 60-140 Chloromethane ug/L 43.250 86 60-140 cis-1,2-Dichloroethene ug/L 43.150 86 60-140 cis-1,3-Dichloropropene ug/L 46.850 94 60-140 Dibromochloromethane ug/L 49.250 98 60-140 Dibromomethane ug/L 49.550 99 60-140 Dichlorodifluoromethane ug/L 49.250 98 60-140 Diisopropyl ether ug/L 40.850 82 60-140 Ethanol ug/L 17602000 88 60-140 Ethyl-tert-butyl ether ug/L 90.0100 90 60-140 Ethylbenzene ug/L 48.250 96 60-140 Hexachloro-1,3-butadiene ug/L 46.850 94 60-140 Isopropylbenzene (Cumene)ug/L 48.950 98 60-140 m&p-Xylene ug/L 97.1100 97 60-140 Methyl-tert-butyl ether ug/L 44.350 89 60-140 Methylene Chloride ug/L 44.650 89 60-140 n-Butylbenzene ug/L 47.950 96 60-140 n-Propylbenzene ug/L 46.350 93 60-140 Naphthalene ug/L 51.150 102 60-140 o-Xylene ug/L 48.450 97 60-140 sec-Butylbenzene ug/L 47.550 95 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527693 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3201004LABORATORY CONTROL SAMPLE: LCSSpike Styrene ug/L 49.150 98 60-140 tert-Amyl Alcohol ug/L 9601000 96 60-140 tert-Amylmethyl ether ug/L 94.2100 94 60-140 tert-Butyl Alcohol ug/L 438500 88 60-140 tert-Butyl Formate ug/L 376400 94 60-140 tert-Butylbenzene ug/L 39.850 80 60-140 Tetrachloroethene ug/L 49.350 99 60-140 Toluene ug/L 47.250 94 60-140 trans-1,2-Dichloroethene ug/L 45.050 90 60-140 trans-1,3-Dichloropropene ug/L 46.250 92 60-140 Trichloroethene ug/L 49.150 98 60-140 Trichlorofluoromethane ug/L 48.650 97 60-140 Vinyl chloride ug/L 44.350 89 60-140 Xylene (Total)ug/L 146150 97 60-140 1,2-Dichloroethane-d4 (S)%91 70-130 4-Bromofluorobenzene (S)%99 70-130 Toluene-d8 (S)%96 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 3201005MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92527693003 3201006 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 4000 103 60-140104 1 304000<62.2 4130 4160 1,1,1-Trichloroethane ug/L 4000 99 60-14099 0 304000<66.4 3950 3960 1,1,2,2-Tetrachloroethane ug/L 4000 96 60-14098 2 304000<45.0 3850 3930 1,1,2-Trichloroethane ug/L 4000 100 60-140102 2 304000<65.0 4000 4070 1,1-Dichloroethane ug/L 4000 95 60-14098 3 304000<73.4 3810 3920 1,1-Dichloroethene ug/L 4000 104 60-140107 2 304000<69.6 4170 4260 1,1-Dichloropropene ug/L 4000 99 60-140100 2 304000<85.4 3940 4010 1,2,3-Trichlorobenzene ug/L 4000 106 60-140109 3 304000<161 4260 4370 1,2,3-Trichloropropane ug/L 4000 100 60-140105 5 304000<52.2 3980 4190 1,2,4-Trichlorobenzene ug/L 4000 106 60-140109 2 304000<128 4260 4350 1,2,4-Trimethylbenzene ug/L 4000 90 60-140100 3 304000121001570016100 1,2-Dibromo-3- chloropropane ug/L 4000 99 60-140103 4 304000<68.0 3940 4100 1,2-Dibromoethane (EDB)ug/L 4000 101 60-140103 2 30400051545404650 1,2-Dichlorobenzene ug/L 4000 106 60-140108 3 304000<67.8 4220 4340 1,2-Dichloroethane ug/L 4000 87 60-14086 1 30400033738303790 1,2-Dichloropropane ug/L 4000 95 60-14096 2 304000<71.0 3780 3850 1,3,5-Trimethylbenzene ug/L 4000 97 60-140102 3 304000310069707190 1,3-Dichlorobenzene ug/L 4000 108 60-140110 2 304000<68.0 4300 4390 1,3-Dichloropropane ug/L 4000 98 60-14099 1 304000<56.8 3920 3950 1,4-Dichlorobenzene ug/L 4000 107 60-140109 1 304000<66.6 4290 4350 2,2-Dichloropropane ug/L 4000 71 60-14070 1 304000<77.6 2830 2800 2-Butanone (MEK)ug/L 8000 84 60-14087 4 308000<792 6720 6980 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527693 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3201005MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92527693003 3201006 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 2-Chlorotoluene ug/L 4000 105 60-140112 7 304000<64.2 4190 4500 2-Hexanone ug/L 8000 90 60-14093 3 308000<95.2 7240 7460 4-Chlorotoluene ug/L 4000 99 60-140101 1 304000<64.8 3970 4020 Benzene ug/L 4000 88 60-14091 1 304000170002050020600 Bromobenzene ug/L 4000 102 60-140103 1 304000<58.0 4070 4130 Bromochloromethane ug/L 4000 102 60-140104 2 304000<93.6 4070 4150 Bromodichloromethane ug/L 4000 93 60-14094 1 304000<61.4 3730 3750 Bromoform ug/L 4000 98 60-14099 1 304000<68.2 3910 3960 Bromomethane ug/L 4000 105 60-140109 4 304000<332 4190 4360 Carbon tetrachloride ug/L 4000 109 60-140111 2 304000<66.6 4360 4440 Chlorobenzene ug/L 4000 107 60-140107 0 304000<56.8 4270 4260 Chloroethane ug/L 4000 122 60-140121 1 304000<130 4880 4830 Chloroform ug/L 4000 94 60-14097 4 304000<70.6 3740 3880 Chloromethane ug/L 4000 79 60-14083 4 304000<108 3180 3320 cis-1,2-Dichloroethene ug/L 4000 95 60-14095 0 304000<76.8 3780 3800 cis-1,3-Dichloropropene ug/L 4000 93 60-14094 1 304000<73.0 3730 3770 Dibromochloromethane ug/L 4000 102 60-140104 2 304000<71.8 4090 4150 Dibromomethane ug/L 4000 104 60-140106 2 304000<78.8 4160 4250 Dichlorodifluoromethane ug/L 4000 101 60-140101 1 304000<69.2 4060 4030 Diisopropyl ether ug/L 4000 86 60-14087 1 30400010335503590 Ethanol ug/L 160000 91 60-14093 2 30160000<14400 146000 148000 Ethyl-tert-butyl ether ug/L 8000 95 60-14097 2 308000<648 7620 7780 Ethylbenzene ug/L 4000 103 60-140105 1 304000492090409120 Hexachloro-1,3-butadiene ug/L 4000 100 60-140101 1 304000<306 4010 4040 Isopropylbenzene (Cumene) ug/L 4000 107 60-140108 0 30400039646904720 m&p-Xylene ug/L 8000 101 60-140106 2 308000170002500025500 Methyl-tert-butyl ether ug/L 4000 92 60-14094 2 30400025239104010 Methylene Chloride ug/L 4000 97 60-14098 0 304000<390 3900 3910 n-Butylbenzene ug/L 4000 122 60-140125 2 304000<98.0 4890 4980 n-Propylbenzene ug/L 4000 133 60-140135 2 304000<68.0 5300 5410 Naphthalene ug/L 4000 114 60-140123 5 304000258071507480 o-Xylene ug/L 4000 103 60-140105 1 30400074201150011600 sec-Butylbenzene ug/L 4000 108 60-140111 2 304000<80.0 4320 4420 Styrene ug/L 4000 106 60-140107 0 30400011743604380 tert-Amyl Alcohol ug/L 80000 102 60-140104 2 3080000<7280 81300 82800 tert-Amylmethyl ether ug/L 8000 101 60-140100 1 308000<532 8100 8040 tert-Butyl Alcohol ug/L 40000 89 60-14090 1 3040000<5360 35700 36000 tert-Butyl Formate ug/L 32000 96 60-14098 1 3032000<5880 30800 31200 tert-Butylbenzene ug/L 4000 88 60-14089 1 304000<64.6 3510 3540 Tetrachloroethene ug/L 4000 107 60-140107 0 304000<58.4 4280 4290 Toluene ug/L E40006360-14063 0 304000396004220042200 trans-1,2-Dichloroethene ug/L 4000 98 60-14098 1 304000<79.2 3940 3910 trans-1,3-Dichloropropene ug/L 4000 92 60-14092 1 304000<72.6 3670 3690 Trichloroethene ug/L 4000 109 60-140109 0 304000<76.6 4370 4360 Trichlorofluoromethane ug/L 4000 127 60-140127 0 304000<59.6 5080 5100 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92527693 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3201005MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92527693003 3201006 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Vinyl chloride ug/L 4000 93 60-14095 2 304000<77.2 3720 3800 Xylene (Total)ug/L 12000 101 60-140106 1 3012000244003660037100 1,2-Dichloroethane-d4 (S)%97 70-13096 4-Bromofluorobenzene (S)%98 70-13097 Toluene-d8 (S)%97 70-13097 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 27 #=QL# QUALIFIERS Pace Project No.: Project: 92527693 WILLIAMS GROCERY DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Analyte concentration exceeded the calibration range. The reported result is estimated.E REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 27 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92527693 WILLIAMS GROCERY Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92527693001 607343MW-1 SM 6200B 92527693002 607343MW-3 SM 6200B 92527693003 607642RW-1 SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/22/2021 05:20 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 24 of 27 Page 25 of 27 Page 26 of 27 Page 27 of 27 #=CL# March 25, 2021 LIMS USE: FR - NOELLE FRANCE LIMS OBJECT ID: 92528786 92528786 Project: Pace Project No.: RE: Noelle France ATC Group Services LLC- South Charlotte 7606 Whitehall Exe Center Dr Suite 800 Charlotte, NC 28273 Williams Grocery Dear Noelle France: Enclosed are the analytical results for sample(s) received by the laboratory on March 19, 2021. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Bonnie Vang bonnie.vang@pacelabs.com Project Manager (704)875-9092 Enclosures cc:Al Quarles, ATC REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 27 #=CP# CERTIFICATIONS Pace Project No.: Project: 92528786 Williams Grocery Pace Analytical Services Charlotte 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 Louisiana/NELAP Certification # LA170028 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 27 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92528786 Williams Grocery Lab ID Sample ID Matrix Date Collected Date Received 92528786001 MW-1 Water 03/17/21 12:05 03/19/21 15:04 92528786002 MW-3 Water 03/17/21 12:10 03/19/21 15:04 92528786003 RW-1 Water 03/17/21 12:25 03/19/21 15:04 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 27 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92528786 Williams Grocery Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92528786001 MW-1 SM 6200B 72 PASI-CSAS 92528786002 MW-3 SM 6200B 72 PASI-CSAS 92528786003 RW-1 SM 6200B 72 PASI-CSAS PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92528786 Williams Grocery Sample:MW-1 Lab ID:92528786001 Collected:03/17/21 12:05 Received:03/19/21 15:04 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol 15300 ug/L 03/24/21 19:15 75-85-44000146040 tert-Amylmethyl ether 111J ug/L 03/24/21 19:15 994-05-840010640 Benzene 2860 ug/L 03/24/21 19:15 71-43-220.0 13.8 40 Bromobenzene <11.6 ug/L 03/24/21 19:15 108-86-120.0 11.6 40 Bromochloromethane <18.7 ug/L 03/24/21 19:15 74-97-520.0 18.7 40 Bromodichloromethane <12.3 ug/L 03/24/21 19:15 75-27-420.0 12.3 40 Bromoform <13.6 ug/L 03/24/21 19:15 75-25-220.0 13.6 40 Bromomethane <66.4 ug/L 03/24/21 19:15 74-83-920066.4 40 2-Butanone (MEK)1480 ug/L 03/24/21 19:15 78-93-320015840 tert-Butyl Alcohol 24700 ug/L 03/24/21 19:15 75-65-02000107040 n-Butylbenzene <19.6 ug/L 03/24/21 19:15 104-51-820.0 19.6 40 sec-Butylbenzene <16.0 ug/L 03/24/21 19:15 135-98-820.0 16.0 40 tert-Butylbenzene <12.9 ug/L 03/24/21 19:15 98-06-620.0 12.9 40 tert-Butyl Formate <1180 ug/L 03/24/21 19:15 762-75-42000118040 Carbon tetrachloride <13.3 ug/L 03/24/21 19:15 56-23-520.0 13.3 40 Chlorobenzene <11.4 ug/L 03/24/21 19:15 108-90-720.0 11.4 40 Chloroethane <26.0 ug/L 03/24/21 19:15 75-00-340.0 26.0 40 Chloroform <14.1 ug/L 03/24/21 19:15 67-66-320.0 14.1 40 Chloromethane <21.6 ug/L 03/24/21 19:15 74-87-340.0 21.6 40 2-Chlorotoluene <12.8 ug/L 03/24/21 19:15 95-49-820.0 12.8 40 4-Chlorotoluene <13.0 ug/L 03/24/21 19:15 106-43-420.0 13.0 40 1,2-Dibromo-3-chloropropane <13.6 ug/L 03/24/21 19:15 96-12-840.0 13.6 40 Dibromochloromethane <14.4 ug/L 03/24/21 19:15 124-48-120.0 14.4 40 1,2-Dibromoethane (EDB)334 ug/L 03/24/21 19:15 106-93-420.0 10.9 40 Dibromomethane <15.8 ug/L 03/24/21 19:15 74-95-320.0 15.8 40 1,2-Dichlorobenzene <13.6 ug/L 03/24/21 19:15 95-50-120.0 13.6 40 1,3-Dichlorobenzene <13.6 ug/L 03/24/21 19:15 541-73-120.0 13.6 40 1,4-Dichlorobenzene <13.3 ug/L 03/24/21 19:15 106-46-720.0 13.3 40 Dichlorodifluoromethane <13.8 ug/L 03/24/21 19:15 75-71-820.0 13.8 40 1,1-Dichloroethane <14.7 ug/L 03/24/21 19:15 75-34-320.0 14.7 40 1,2-Dichloroethane 419 ug/L 03/24/21 19:15 107-06-220.0 12.9 40 1,1-Dichloroethene <13.9 ug/L 03/24/21 19:15 75-35-420.0 13.9 40 cis-1,2-Dichloroethene <15.4 ug/L 03/24/21 19:15 156-59-220.0 15.4 40 trans-1,2-Dichloroethene <15.8 ug/L 03/24/21 19:15 156-60-520.0 15.8 40 1,2-Dichloropropane <14.2 ug/L 03/24/21 19:15 78-87-520.0 14.2 40 1,3-Dichloropropane <11.4 ug/L 03/24/21 19:15 142-28-920.0 11.4 40 2,2-Dichloropropane <15.5 ug/L 03/24/21 19:15 594-20-720.0 15.5 40 1,1-Dichloropropene <17.1 ug/L 03/24/21 19:15 563-58-620.0 17.1 40 cis-1,3-Dichloropropene <14.6 ug/L 03/24/21 19:15 10061-01-520.0 14.6 40 trans-1,3-Dichloropropene <14.5 ug/L 03/24/21 19:15 10061-02-620.0 14.5 40 Diisopropyl ether 95.1 ug/L 03/24/21 19:15 108-20-320.0 12.3 40 Ethanol <2890 ug/L 03/24/21 19:15 64-17-58000289040 Ethylbenzene 290 ug/L 03/24/21 19:15 100-41-420.0 12.2 40 Ethyl-tert-butyl ether <130 ug/L 03/24/21 19:15 637-92-340013040 Hexachloro-1,3-butadiene <61.2 ug/L 03/24/21 19:15 87-68-380.0 61.2 40 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92528786 Williams Grocery Sample:MW-1 Lab ID:92528786001 Collected:03/17/21 12:05 Received:03/19/21 15:04 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV 2-Hexanone 360 ug/L 03/24/21 19:15 591-78-620019.0 40 Isopropylbenzene (Cumene)17.9J ug/L 03/24/21 19:15 98-82-820.0 13.3 40 Methylene Chloride <78.0 ug/L 03/24/21 19:15 75-09-280.0 78.0 40 Methyl-tert-butyl ether 5050 ug/L 03/24/21 19:15 1634-04-420.0 16.9 40 Naphthalene 327 ug/L 03/24/21 19:15 91-20-380.0 25.8 40 n-Propylbenzene <13.6 ug/L 03/24/21 19:15 103-65-120.0 13.6 40 Styrene <11.7 ug/L 03/24/21 19:15 100-42-520.0 11.7 40 1,1,1,2-Tetrachloroethane <12.4 ug/L 03/24/21 19:15 630-20-620.0 12.4 40 1,1,2,2-Tetrachloroethane <9.0 ug/L 03/24/21 19:15 79-34-520.0 9.0 40 Tetrachloroethene <11.7 ug/L 03/24/21 19:15 127-18-420.0 11.7 40 Toluene 4010 ug/L 03/24/21 19:15 108-88-320.0 19.4 40 1,2,3-Trichlorobenzene <32.2 ug/L 03/24/21 19:15 87-61-680.0 32.2 40 1,2,4-Trichlorobenzene <25.6 ug/L 03/24/21 19:15 120-82-180.0 25.6 40 1,1,1-Trichloroethane <13.3 ug/L 03/24/21 19:15 71-55-620.0 13.3 40 1,1,2-Trichloroethane <13.0 ug/L 03/24/21 19:15 79-00-520.0 13.0 40 Trichloroethene <15.3 ug/L 03/24/21 19:15 79-01-620.0 15.3 40 Trichlorofluoromethane <11.9 ug/L 03/24/21 19:15 75-69-440.0 11.9 40 1,2,3-Trichloropropane <10.4 ug/L 03/24/21 19:15 96-18-420.0 10.4 40 1,2,4-Trimethylbenzene 1380 ug/L 03/24/21 19:15 95-63-620.0 19.8 40 1,3,5-Trimethylbenzene 465 ug/L 03/24/21 19:15 108-67-820.0 13.3 40 Vinyl chloride <15.4 ug/L 03/24/21 19:15 75-01-440.0 15.4 40 Xylene (Total)6040 ug/L 03/24/21 19:15 1330-20-740.0 13.5 40 m&p-Xylene 3670 ug/L 03/24/21 19:15 179601-23-140.0 28.4 40 o-Xylene 2370 ug/L 03/24/21 19:15 95-47-620.0 13.5 40 Surrogates 1,2-Dichloroethane-d4 (S)97 %03/24/21 19:15 17060-07-070-130 40 4-Bromofluorobenzene (S)96 %03/24/21 19:15 460-00-470-130 40 Toluene-d8 (S)98 %03/24/21 19:15 2037-26-570-130 40 Sample:MW-3 Lab ID:92528786002 Collected:03/17/21 12:10 Received:03/19/21 15:04 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol 4960J ug/L 03/24/21 19:33 75-85-45000182050 tert-Amylmethyl ether <133 ug/L 03/24/21 19:33 994-05-850013350 Benzene 2840 ug/L 03/24/21 19:33 71-43-225.0 17.2 50 Bromobenzene <14.5 ug/L 03/24/21 19:33 108-86-125.0 14.5 50 Bromochloromethane <23.4 ug/L 03/24/21 19:33 74-97-525.0 23.4 50 Bromodichloromethane <15.4 ug/L 03/24/21 19:33 75-27-425.0 15.4 50 Bromoform <17.0 ug/L 03/24/21 19:33 75-25-225.0 17.0 50 Bromomethane <83.0 ug/L 03/24/21 19:33 74-83-925083.0 50 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92528786 Williams Grocery Sample:MW-3 Lab ID:92528786002 Collected:03/17/21 12:10 Received:03/19/21 15:04 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV 2-Butanone (MEK)<198 ug/L 03/24/21 19:33 78-93-325019850 tert-Butyl Alcohol <1340 ug/L 03/24/21 19:33 75-65-02500134050 n-Butylbenzene <24.5 ug/L 03/24/21 19:33 104-51-825.0 24.5 50 sec-Butylbenzene <20.0 ug/L 03/24/21 19:33 135-98-825.0 20.0 50 tert-Butylbenzene <16.2 ug/L 03/24/21 19:33 98-06-625.0 16.2 50 tert-Butyl Formate <1470 ug/L 03/24/21 19:33 762-75-42500147050 Carbon tetrachloride <16.6 ug/L 03/24/21 19:33 56-23-525.0 16.6 50 Chlorobenzene <14.2 ug/L 03/24/21 19:33 108-90-725.0 14.2 50 Chloroethane <32.4 ug/L 03/24/21 19:33 75-00-350.0 32.4 50 Chloroform <17.6 ug/L 03/24/21 19:33 67-66-325.0 17.6 50 Chloromethane <27.0 ug/L 03/24/21 19:33 74-87-350.0 27.0 50 2-Chlorotoluene <16.0 ug/L 03/24/21 19:33 95-49-825.0 16.0 50 4-Chlorotoluene <16.2 ug/L 03/24/21 19:33 106-43-425.0 16.2 50 1,2-Dibromo-3-chloropropane <17.0 ug/L 03/24/21 19:33 96-12-850.0 17.0 50 Dibromochloromethane <18.0 ug/L 03/24/21 19:33 124-48-125.0 18.0 50 1,2-Dibromoethane (EDB)240 ug/L 03/24/21 19:33 106-93-425.0 13.6 50 Dibromomethane <19.7 ug/L 03/24/21 19:33 74-95-325.0 19.7 50 1,2-Dichlorobenzene <17.0 ug/L 03/24/21 19:33 95-50-125.0 17.0 50 1,3-Dichlorobenzene <17.0 ug/L 03/24/21 19:33 541-73-125.0 17.0 50 1,4-Dichlorobenzene <16.6 ug/L 03/24/21 19:33 106-46-725.0 16.6 50 Dichlorodifluoromethane <17.3 ug/L 03/24/21 19:33 75-71-825.0 17.3 50 1,1-Dichloroethane <18.4 ug/L 03/24/21 19:33 75-34-325.0 18.4 50 1,2-Dichloroethane 65.5 ug/L 03/24/21 19:33 107-06-225.0 16.1 50 1,1-Dichloroethene <17.4 ug/L 03/24/21 19:33 75-35-425.0 17.4 50 cis-1,2-Dichloroethene <19.2 ug/L 03/24/21 19:33 156-59-225.0 19.2 50 trans-1,2-Dichloroethene <19.8 ug/L 03/24/21 19:33 156-60-525.0 19.8 50 1,2-Dichloropropane <17.8 ug/L 03/24/21 19:33 78-87-525.0 17.8 50 1,3-Dichloropropane <14.2 ug/L 03/24/21 19:33 142-28-925.0 14.2 50 2,2-Dichloropropane <19.4 ug/L 03/24/21 19:33 594-20-725.0 19.4 50 1,1-Dichloropropene <21.4 ug/L 03/24/21 19:33 563-58-625.0 21.4 50 cis-1,3-Dichloropropene <18.2 ug/L 03/24/21 19:33 10061-01-525.0 18.2 50 trans-1,3-Dichloropropene <18.2 ug/L 03/24/21 19:33 10061-02-625.0 18.2 50 Diisopropyl ether <15.4 ug/L 03/24/21 19:33 108-20-325.0 15.4 50 Ethanol <3610 ug/L 03/24/21 19:33 64-17-510000361050 Ethylbenzene 442 ug/L 03/24/21 19:33 100-41-425.0 15.2 50 Ethyl-tert-butyl ether <162 ug/L 03/24/21 19:33 637-92-350016250 Hexachloro-1,3-butadiene <76.5 ug/L 03/24/21 19:33 87-68-310076.5 50 2-Hexanone 228J ug/L 03/24/21 19:33 591-78-625023.8 50 Isopropylbenzene (Cumene)27.9 ug/L 03/24/21 19:33 98-82-825.0 16.6 50 Methylene Chloride <97.5 ug/L 03/24/21 19:33 75-09-210097.5 50 Methyl-tert-butyl ether 51.1 ug/L 03/24/21 19:33 1634-04-425.0 21.1 50 Naphthalene 520 ug/L 03/24/21 19:33 91-20-310032.2 50 n-Propylbenzene <17.0 ug/L 03/24/21 19:33 103-65-125.0 17.0 50 Styrene <14.6 ug/L 03/24/21 19:33 100-42-525.0 14.6 50 1,1,1,2-Tetrachloroethane <15.6 ug/L 03/24/21 19:33 630-20-625.0 15.6 50 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92528786 Williams Grocery Sample:MW-3 Lab ID:92528786002 Collected:03/17/21 12:10 Received:03/19/21 15:04 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV 1,1,2,2-Tetrachloroethane <11.2 ug/L 03/24/21 19:33 79-34-525.0 11.2 50 Tetrachloroethene <14.6 ug/L 03/24/21 19:33 127-18-425.0 14.6 50 Toluene 6020 ug/L 03/24/21 19:33 108-88-325.0 24.2 50 1,2,3-Trichlorobenzene <40.3 ug/L 03/24/21 19:33 87-61-610040.3 50 1,2,4-Trichlorobenzene <32.0 ug/L 03/24/21 19:33 120-82-110032.0 50 1,1,1-Trichloroethane <16.6 ug/L 03/24/21 19:33 71-55-625.0 16.6 50 1,1,2-Trichloroethane <16.2 ug/L 03/24/21 19:33 79-00-525.0 16.2 50 Trichloroethene <19.2 ug/L 03/24/21 19:33 79-01-625.0 19.2 50 Trichlorofluoromethane <14.9 ug/L 03/24/21 19:33 75-69-450.0 14.9 50 1,2,3-Trichloropropane <13.0 ug/L 03/24/21 19:33 96-18-425.0 13.0 50 1,2,4-Trimethylbenzene 1370 ug/L 03/24/21 19:33 95-63-625.0 24.8 50 1,3,5-Trimethylbenzene 588 ug/L 03/24/21 19:33 108-67-825.0 16.6 50 Vinyl chloride <19.3 ug/L 03/24/21 19:33 75-01-450.0 19.3 50 Xylene (Total)5880 ug/L 03/24/21 19:33 1330-20-750.0 16.9 50 m&p-Xylene 2910 ug/L 03/24/21 19:33 179601-23-150.0 35.4 50 o-Xylene 2960 ug/L 03/24/21 19:33 95-47-625.0 16.9 50 Surrogates 1,2-Dichloroethane-d4 (S)93 %03/24/21 19:33 17060-07-070-130 50 4-Bromofluorobenzene (S)94 %03/24/21 19:33 460-00-470-130 50 Toluene-d8 (S)99 %03/24/21 19:33 2037-26-570-130 50 Sample:RW-1 Lab ID:92528786003 Collected:03/17/21 12:25 Received:03/19/21 15:04 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <9100 ug/L 03/24/21 02:34 75-85-4250009100250 tert-Amylmethyl ether <665 ug/L 03/24/21 02:34 994-05-82500665250 Benzene 15400 ug/L 03/24/21 02:34 71-43-212586.2 250 Bromobenzene <72.5 ug/L 03/24/21 02:34 108-86-112572.5 250 Bromochloromethane <117 ug/L 03/24/21 02:34 74-97-5125117250 Bromodichloromethane <76.8 ug/L 03/24/21 02:34 75-27-412576.8 250 Bromoform <85.2 ug/L 03/24/21 02:34 75-25-212585.2 250 Bromomethane <415 ug/L 03/24/21 02:34 74-83-91250415250 2-Butanone (MEK)<990 ug/L 03/24/21 02:34 78-93-31250990250 tert-Butyl Alcohol <6700 ug/L 03/24/21 02:34 75-65-0125006700250 n-Butylbenzene <122 ug/L 03/24/21 02:34 104-51-8125122250 sec-Butylbenzene <100 ug/L 03/24/21 02:34 135-98-8125100250 tert-Butylbenzene <80.8 ug/L 03/24/21 02:34 98-06-612580.8 250 tert-Butyl Formate <7350 ug/L 03/24/21 02:34 762-75-4125007350250 Carbon tetrachloride <83.2 ug/L 03/24/21 02:34 56-23-512583.2 250 Chlorobenzene <71.0 ug/L 03/24/21 02:34 108-90-712571.0 250 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92528786 Williams Grocery Sample:RW-1 Lab ID:92528786003 Collected:03/17/21 12:25 Received:03/19/21 15:04 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Chloroethane <162 ug/L 03/24/21 02:34 75-00-3250162250 Chloroform <88.2 ug/L 03/24/21 02:34 67-66-312588.2 250 Chloromethane <135 ug/L 03/24/21 02:34 74-87-3250135250 2-Chlorotoluene <80.2 ug/L 03/24/21 02:34 95-49-812580.2 250 4-Chlorotoluene <81.0 ug/L 03/24/21 02:34 106-43-412581.0 250 1,2-Dibromo-3-chloropropane <85.0 ug/L 03/24/21 02:34 96-12-825085.0 250 Dibromochloromethane <89.8 ug/L 03/24/21 02:34 124-48-112589.8 250 1,2-Dibromoethane (EDB)550 ug/L 03/24/21 02:34 106-93-412568.0 250 Dibromomethane <98.5 ug/L 03/24/21 02:34 74-95-312598.5 250 1,2-Dichlorobenzene <84.8 ug/L 03/24/21 02:34 95-50-112584.8 250 1,3-Dichlorobenzene <85.0 ug/L 03/24/21 02:34 541-73-112585.0 250 1,4-Dichlorobenzene <83.2 ug/L 03/24/21 02:34 106-46-712583.2 250 Dichlorodifluoromethane <86.5 ug/L 03/24/21 02:34 75-71-812586.5 250 1,1-Dichloroethane <91.8 ug/L 03/24/21 02:34 75-34-312591.8 250 1,2-Dichloroethane 408 ug/L 03/24/21 02:34 107-06-212580.5 250 1,1-Dichloroethene <87.0 ug/L 03/24/21 02:34 75-35-412587.0 250 cis-1,2-Dichloroethene <96.0 ug/L 03/24/21 02:34 156-59-212596.0 250 trans-1,2-Dichloroethene <99.0 ug/L 03/24/21 02:34 156-60-512599.0 250 1,2-Dichloropropane <88.8 ug/L 03/24/21 02:34 78-87-512588.8 250 1,3-Dichloropropane <71.0 ug/L 03/24/21 02:34 142-28-912571.0 250 2,2-Dichloropropane <97.0 ug/L 03/24/21 02:34 594-20-712597.0 250 1,1-Dichloropropene <107 ug/L 03/24/21 02:34 563-58-6125107250 cis-1,3-Dichloropropene <91.2 ug/L 03/24/21 02:34 10061-01-512591.2 250 trans-1,3-Dichloropropene <90.8 ug/L 03/24/21 02:34 10061-02-612590.8 250 Diisopropyl ether 142 ug/L 03/24/21 02:34 108-20-312577.0 250 Ethanol <18000 ug/L 03/24/21 02:34 64-17-55000018000250 Ethylbenzene 3800 ug/L 03/24/21 02:34 100-41-412576.0 250 Ethyl-tert-butyl ether <810 ug/L 03/24/21 02:34 637-92-32500810250 Hexachloro-1,3-butadiene <382 ug/L 03/24/21 02:34 87-68-3500382250 2-Hexanone <119 ug/L 03/24/21 02:34 591-78-61250119250 Isopropylbenzene (Cumene)188 ug/L 03/24/21 02:34 98-82-812583.2 250 Methylene Chloride <488 ug/L 03/24/21 02:34 75-09-2500488250 Methyl-tert-butyl ether 717 ug/L 03/24/21 02:34 1634-04-4125106250 Naphthalene 1210 ug/L 03/24/21 02:34 91-20-3500161250 n-Propylbenzene <85.0 ug/L 03/24/21 02:34 103-65-112585.0 250 Styrene 134 ug/L 03/24/21 02:34 100-42-512573.0 250 1,1,1,2-Tetrachloroethane <77.8 ug/L 03/24/21 02:34 630-20-612577.8 250 1,1,2,2-Tetrachloroethane <56.2 ug/L 03/24/21 02:34 79-34-512556.2 250 Tetrachloroethene <73.0 ug/L 03/24/21 02:34 127-18-412573.0 250 Toluene 41400 ug/L 03/24/21 02:34 108-88-3125121250 1,2,3-Trichlorobenzene <202 ug/L 03/24/21 02:34 87-61-6500202250 1,2,4-Trichlorobenzene <160 ug/L 03/24/21 02:34 120-82-1500160250 1,1,1-Trichloroethane <83.0 ug/L 03/24/21 02:34 71-55-612583.0 250 1,1,2-Trichloroethane <81.2 ug/L 03/24/21 02:34 79-00-512581.2 250 Trichloroethene <95.8 ug/L 03/24/21 02:34 79-01-612595.8 250 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 27 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92528786 Williams Grocery Sample:RW-1 Lab ID:92528786003 Collected:03/17/21 12:25 Received:03/19/21 15:04 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Trichlorofluoromethane <74.5 ug/L 03/24/21 02:34 75-69-425074.5 250 1,2,3-Trichloropropane <65.2 ug/L 03/24/21 02:34 96-18-412565.2 250 1,2,4-Trimethylbenzene 4870 ug/L 03/24/21 02:34 95-63-6125124250 1,3,5-Trimethylbenzene 1330 ug/L 03/24/21 02:34 108-67-812583.0 250 Vinyl chloride <96.5 ug/L 03/24/21 02:34 75-01-425096.5 250 Xylene (Total)21400 ug/L 03/24/21 02:34 1330-20-725084.5 250 m&p-Xylene 14600 ug/L 03/24/21 02:34 179601-23-1250177250 o-Xylene 6760 ug/L 03/24/21 02:34 95-47-612584.5 250 Surrogates 1,2-Dichloroethane-d4 (S)92 %03/24/21 02:34 17060-07-070-130 250 4-Bromofluorobenzene (S)93 %03/24/21 02:34 460-00-470-130 250 Toluene-d8 (S)98 %03/24/21 02:34 2037-26-570-130 250 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92528786 Williams Grocery Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 608547 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92528786003 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3205507 Associated Lab Samples:92528786003 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.31 0.50 03/23/21 21:270.31 1,1,1-Trichloroethane ug/L <0.33 0.50 03/23/21 21:270.33 1,1,2,2-Tetrachloroethane ug/L <0.22 0.50 03/23/21 21:270.22 1,1,2-Trichloroethane ug/L <0.32 0.50 03/23/21 21:270.32 1,1-Dichloroethane ug/L <0.37 0.50 03/23/21 21:270.37 1,1-Dichloroethene ug/L <0.35 0.50 03/23/21 21:270.35 1,1-Dichloropropene ug/L <0.43 0.50 03/23/21 21:270.43 1,2,3-Trichlorobenzene ug/L <0.81 2.0 03/23/21 21:270.81 1,2,3-Trichloropropane ug/L <0.26 0.50 03/23/21 21:270.26 1,2,4-Trichlorobenzene ug/L <0.64 2.0 03/23/21 21:270.64 1,2,4-Trimethylbenzene ug/L <0.50 0.50 03/23/21 21:270.50 1,2-Dibromo-3-chloropropane ug/L <0.34 1.0 03/23/21 21:270.34 1,2-Dibromoethane (EDB)ug/L <0.27 0.50 03/23/21 21:270.27 1,2-Dichlorobenzene ug/L <0.34 0.50 03/23/21 21:270.34 1,2-Dichloroethane ug/L <0.32 0.50 03/23/21 21:270.32 1,2-Dichloropropane ug/L <0.36 0.50 03/23/21 21:270.36 1,3,5-Trimethylbenzene ug/L <0.33 0.50 03/23/21 21:270.33 1,3-Dichlorobenzene ug/L <0.34 0.50 03/23/21 21:270.34 1,3-Dichloropropane ug/L <0.28 0.50 03/23/21 21:270.28 1,4-Dichlorobenzene ug/L <0.33 0.50 03/23/21 21:270.33 2,2-Dichloropropane ug/L <0.39 0.50 03/23/21 21:270.39 2-Butanone (MEK)ug/L <4.0 5.0 03/23/21 21:274.0 2-Chlorotoluene ug/L <0.32 0.50 03/23/21 21:270.32 2-Hexanone ug/L <0.48 5.0 03/23/21 21:270.48 4-Chlorotoluene ug/L <0.32 0.50 03/23/21 21:270.32 Benzene ug/L <0.34 0.50 03/23/21 21:270.34 Bromobenzene ug/L <0.29 0.50 03/23/21 21:270.29 Bromochloromethane ug/L <0.47 0.50 03/23/21 21:270.47 Bromodichloromethane ug/L <0.31 0.50 03/23/21 21:270.31 Bromoform ug/L <0.34 0.50 03/23/21 21:270.34 Bromomethane ug/L <1.7 5.0 03/23/21 21:271.7 Carbon tetrachloride ug/L <0.33 0.50 03/23/21 21:270.33 Chlorobenzene ug/L <0.28 0.50 03/23/21 21:270.28 Chloroethane ug/L <0.65 1.0 03/23/21 21:270.65 Chloroform ug/L <0.35 0.50 03/23/21 21:270.35 Chloromethane ug/L <0.54 1.0 03/23/21 21:270.54 cis-1,2-Dichloroethene ug/L <0.38 0.50 03/23/21 21:270.38 cis-1,3-Dichloropropene ug/L <0.36 0.50 03/23/21 21:270.36 Dibromochloromethane ug/L <0.36 0.50 03/23/21 21:270.36 Dibromomethane ug/L <0.39 0.50 03/23/21 21:270.39 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92528786 Williams Grocery Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3205507 Associated Lab Samples:92528786003 Matrix:Water AnalyzedMDL Dichlorodifluoromethane ug/L <0.35 0.50 03/23/21 21:270.35 Diisopropyl ether ug/L <0.31 0.50 03/23/21 21:270.31 Ethanol ug/L <72.2 200 03/23/21 21:2772.2 Ethyl-tert-butyl ether ug/L <3.2 10.0 03/23/21 21:273.2 Ethylbenzene ug/L <0.30 0.50 03/23/21 21:270.30 Hexachloro-1,3-butadiene ug/L <1.5 2.0 03/23/21 21:271.5 Isopropylbenzene (Cumene)ug/L <0.33 0.50 03/23/21 21:270.33 m&p-Xylene ug/L <0.71 1.0 03/23/21 21:270.71 Methyl-tert-butyl ether ug/L <0.42 0.50 03/23/21 21:270.42 Methylene Chloride ug/L <2.0 2.0 03/23/21 21:272.0 n-Butylbenzene ug/L <0.49 0.50 03/23/21 21:270.49 n-Propylbenzene ug/L <0.34 0.50 03/23/21 21:270.34 Naphthalene ug/L <0.64 2.0 03/23/21 21:270.64 o-Xylene ug/L <0.34 0.50 03/23/21 21:270.34 sec-Butylbenzene ug/L <0.40 0.50 03/23/21 21:270.40 Styrene ug/L <0.29 0.50 03/23/21 21:270.29 tert-Amyl Alcohol ug/L <36.4 100 03/23/21 21:2736.4 tert-Amylmethyl ether ug/L <2.7 10.0 03/23/21 21:272.7 tert-Butyl Alcohol ug/L <26.8 50.0 03/23/21 21:2726.8 tert-Butyl Formate ug/L <29.4 50.0 03/23/21 21:2729.4 tert-Butylbenzene ug/L <0.32 0.50 03/23/21 21:270.32 Tetrachloroethene ug/L <0.29 0.50 03/23/21 21:270.29 Toluene ug/L <0.48 0.50 03/23/21 21:270.48 trans-1,2-Dichloroethene ug/L <0.40 0.50 03/23/21 21:270.40 trans-1,3-Dichloropropene ug/L <0.36 0.50 03/23/21 21:270.36 Trichloroethene ug/L <0.38 0.50 03/23/21 21:270.38 Trichlorofluoromethane ug/L <0.30 1.0 03/23/21 21:270.30 Vinyl chloride ug/L <0.39 1.0 03/23/21 21:270.39 Xylene (Total)ug/L <0.34 1.0 03/23/21 21:270.34 1,2-Dichloroethane-d4 (S)%91 70-130 03/23/21 21:27 4-Bromofluorobenzene (S)%92 70-130 03/23/21 21:27 Toluene-d8 (S)%99 70-130 03/23/21 21:27 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3205508LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 47.850 96 60-140 1,1,1-Trichloroethane ug/L 43.850 88 60-140 1,1,2,2-Tetrachloroethane ug/L 45.250 90 60-140 1,1,2-Trichloroethane ug/L 48.450 97 60-140 1,1-Dichloroethane ug/L 42.150 84 60-140 1,1-Dichloroethene ug/L 45.050 90 60-140 1,1-Dichloropropene ug/L 44.450 89 60-140 1,2,3-Trichlorobenzene ug/L 48.750 97 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92528786 Williams Grocery Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3205508LABORATORY CONTROL SAMPLE: LCSSpike 1,2,3-Trichloropropane ug/L 46.950 94 60-140 1,2,4-Trichlorobenzene ug/L 49.650 99 60-140 1,2,4-Trimethylbenzene ug/L 45.450 91 60-140 1,2-Dibromo-3-chloropropane ug/L 45.750 91 60-140 1,2-Dibromoethane (EDB)ug/L 47.250 94 60-140 1,2-Dichlorobenzene ug/L 48.850 98 60-140 1,2-Dichloroethane ug/L 40.550 81 60-140 1,2-Dichloropropane ug/L 44.350 89 60-140 1,3,5-Trimethylbenzene ug/L 44.750 89 60-140 1,3-Dichlorobenzene ug/L 48.950 98 60-140 1,3-Dichloropropane ug/L 45.150 90 60-140 1,4-Dichlorobenzene ug/L 49.150 98 60-140 2,2-Dichloropropane ug/L 44.250 88 60-140 2-Butanone (MEK)ug/L 77.8100 78 60-140 2-Chlorotoluene ug/L 45.250 90 60-140 2-Hexanone ug/L 81.9100 82 60-140 4-Chlorotoluene ug/L 44.150 88 60-140 Benzene ug/L 46.050 92 60-140 Bromobenzene ug/L 45.750 91 60-140 Bromochloromethane ug/L 47.650 95 60-140 Bromodichloromethane ug/L 43.750 87 60-140 Bromoform ug/L 46.850 94 60-140 Bromomethane ug/L 51.050 102 60-140 Carbon tetrachloride ug/L 49.150 98 60-140 Chlorobenzene ug/L 48.750 97 60-140 Chloroethane ug/L 44.350 89 60-140 Chloroform ug/L 42.550 85 60-140 Chloromethane ug/L 38.450 77 60-140 cis-1,2-Dichloroethene ug/L 42.350 85 60-140 cis-1,3-Dichloropropene ug/L 46.950 94 60-140 Dibromochloromethane ug/L 48.350 97 60-140 Dibromomethane ug/L 50.250 100 60-140 Dichlorodifluoromethane ug/L 49.350 99 60-140 Diisopropyl ether ug/L 38.650 77 60-140 Ethanol ug/L 15702000 78 60-140 Ethyl-tert-butyl ether ug/L 87.9100 88 60-140 Ethylbenzene ug/L 46.950 94 60-140 Hexachloro-1,3-butadiene ug/L 45.350 91 60-140 Isopropylbenzene (Cumene)ug/L 48.450 97 60-140 m&p-Xylene ug/L 94.5100 95 60-140 Methyl-tert-butyl ether ug/L 42.450 85 60-140 Methylene Chloride ug/L 43.050 86 60-140 n-Butylbenzene ug/L 46.050 92 60-140 n-Propylbenzene ug/L 43.950 88 60-140 Naphthalene ug/L 48.950 98 60-140 o-Xylene ug/L 47.450 95 60-140 sec-Butylbenzene ug/L 45.650 91 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92528786 Williams Grocery Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3205508LABORATORY CONTROL SAMPLE: LCSSpike Styrene ug/L 48.550 97 60-140 tert-Amyl Alcohol ug/L 9281000 93 60-140 tert-Amylmethyl ether ug/L 95.2100 95 60-140 tert-Butyl Alcohol ug/L 396500 79 60-140 tert-Butyl Formate ug/L 362400 90 60-140 tert-Butylbenzene ug/L 38.250 76 60-140 Tetrachloroethene ug/L 49.150 98 60-140 Toluene ug/L 48.350 97 60-140 trans-1,2-Dichloroethene ug/L 43.950 88 60-140 trans-1,3-Dichloropropene ug/L 46.450 93 60-140 Trichloroethene ug/L 50.950 102 60-140 Trichlorofluoromethane ug/L 50.150 100 60-140 Vinyl chloride ug/L 43.250 86 60-140 Xylene (Total)ug/L 142150 95 60-140 1,2-Dichloroethane-d4 (S)%88 70-130 4-Bromofluorobenzene (S)%98 70-130 Toluene-d8 (S)%99 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 3205509MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92528786003 3205510 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 5000 99 60-14098 1 305000<77.8 4940 4910 1,1,1-Trichloroethane ug/L 5000 94 60-14095 2 305000<83.0 4690 4770 1,1,2,2-Tetrachloroethane ug/L 5000 91 60-14091 0 305000<56.2 4550 4530 1,1,2-Trichloroethane ug/L 5000 97 60-140100 2 305000<81.2 4870 4980 1,1-Dichloroethane ug/L 5000 89 60-14091 3 305000<91.8 4440 4560 1,1-Dichloroethene ug/L 5000 99 60-14099 0 305000<87.0 4930 4950 1,1-Dichloropropene ug/L 5000 93 60-14094 1 305000<107 4650 4700 1,2,3-Trichlorobenzene ug/L 5000 100 60-14098 2 305000<202 4990 4910 1,2,3-Trichloropropane ug/L 5000 94 60-14094 0 305000<65.2 4720 4700 1,2,4-Trichlorobenzene ug/L 5000 101 60-140100 1 305000<160 5050 5020 1,2,4-Trimethylbenzene ug/L 5000 104 60-140103 1 30500048701010010000 1,2-Dibromo-3- chloropropane ug/L 5000 94 60-14092 2 305000<85.0 4710 4610 1,2-Dibromoethane (EDB)ug/L 5000 98 60-14097 1 30500055054605410 1,2-Dichlorobenzene ug/L 5000 103 60-140101 2 305000<84.8 5130 5030 1,2-Dichloroethane ug/L 5000 82 60-14084 2 30500040845204600 1,2-Dichloropropane ug/L 5000 92 60-14090 2 305000<88.8 4600 4500 1,3,5-Trimethylbenzene ug/L 5000 98 60-14097 1 305000133062106160 1,3-Dichlorobenzene ug/L 5000 104 60-140102 2 305000<85.0 5210 5090 1,3-Dichloropropane ug/L 5000 93 60-14093 0 305000<71.0 4630 4640 1,4-Dichlorobenzene ug/L 5000 104 60-140103 1 305000<83.2 5210 5140 2,2-Dichloropropane ug/L 5000 77 60-14078 0 305000<97.0 3870 3880 2-Butanone (MEK)ug/L 10000 76 60-14076 0 3010000<990 7590 7590 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92528786 Williams Grocery Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3205509MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92528786003 3205510 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 2-Chlorotoluene ug/L 5000 100 60-14098 2 305000<80.2 5000 4890 2-Hexanone ug/L 10000 86 60-14084 2 3010000<119 8560 8390 4-Chlorotoluene ug/L 5000 95 60-14093 2 305000<81.0 4750 4670 Benzene ug/L 5000 100 60-14097 1 305000154002040020300 Bromobenzene ug/L 5000 99 60-14097 2 305000<72.5 4940 4830 Bromochloromethane ug/L 5000 98 60-140100 1 305000<117 4920 4990 Bromodichloromethane ug/L 5000 89 60-14089 1 305000<76.8 4470 4440 Bromoform ug/L 5000 93 60-14092 1 305000<85.2 4650 4580 Bromomethane ug/L 5000 108 60-140120 11 305000<415 5390 6020 Carbon tetrachloride ug/L 5000 106 60-140110 4 305000<83.2 5300 5500 Chlorobenzene ug/L 5000 103 60-140102 1 305000<71.0 5150 5110 Chloroethane ug/L 5000 118 60-140121 3 305000<162 5880 6040 Chloroform ug/L 5000 89 60-14089 0 305000<88.2 4460 4460 Chloromethane ug/L 5000 84 60-14083 1 305000<135 4190 4160 cis-1,2-Dichloroethene ug/L 5000 88 60-14089 1 305000<96.0 4390 4440 cis-1,3-Dichloropropene ug/L 5000 90 60-14092 2 305000<91.2 4520 4610 Dibromochloromethane ug/L 5000 97 60-14098 1 305000<89.8 4830 4890 Dibromomethane ug/L 5000 102 60-140104 2 305000<98.5 5080 5180 Dichlorodifluoromethane ug/L 5000 105 60-140106 1 305000<86.5 5260 5290 Diisopropyl ether ug/L 5000 79 60-14081 2 30500014241004180 Ethanol ug/L 200000 98 60-14077 24 30200000<18000 196000 154000 Ethyl-tert-butyl ether ug/L 10000 89 60-14090 2 3010000<810 8880 9040 Ethylbenzene ug/L 5000 102 60-140102 0 305000380089208880 Hexachloro-1,3-butadiene ug/L 5000 99 60-14095 4 305000<382 4950 4760 Isopropylbenzene (Cumene) ug/L 5000 104 60-140103 1 30500018854005350 m&p-Xylene ug/L 10000 103 60-140103 0 3010000146002500024900 Methyl-tert-butyl ether ug/L 5000 86 60-14090 4 30500071750305210 Methylene Chloride ug/L 5000 93 60-14092 0 305000<488 4630 4600 n-Butylbenzene ug/L 5000 102 60-140102 1 305000<122 5120 5090 n-Propylbenzene ug/L 5000 108 60-140106 2 305000<85.0 5390 5280 Naphthalene ug/L 5000 107 60-140106 1 305000121065606510 o-Xylene ug/L 5000 104 60-140103 0 30500067601200011900 sec-Butylbenzene ug/L 5000 103 60-14099 4 305000<100 5150 4970 Styrene ug/L 5000 101 60-140100 1 30500013452005160 tert-Amyl Alcohol ug/L 100000 99 60-140100 1 30100000<9100 98600 99600 tert-Amylmethyl ether ug/L 10000 96 60-14098 2 3010000<665 9630 9840 tert-Butyl Alcohol ug/L 50000 84 60-14083 1 3050000<6700 42200 41600 tert-Butyl Formate ug/L 40000 88 60-14089 2 3040000<7350 35100 35700 tert-Butylbenzene ug/L 5000 86 60-14083 3 305000<80.8 4290 4150 Tetrachloroethene ug/L 5000 107 60-140102 5 305000<73.0 5350 5110 Toluene ug/L 5000 80 60-14091 1 305000414004540046000 trans-1,2-Dichloroethene ug/L 5000 92 60-14093 0 305000<99.0 4620 4630 trans-1,3-Dichloropropene ug/L 5000 89 60-14090 1 305000<90.8 4450 4500 Trichloroethene ug/L 5000 107 60-140109 2 305000<95.8 5330 5440 Trichlorofluoromethane ug/L 5000 123 60-140126 3 305000<74.5 6140 6320 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92528786 Williams Grocery Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3205509MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92528786003 3205510 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Vinyl chloride ug/L 5000 93 60-14092 1 305000<96.5 4660 4610 Xylene (Total)ug/L 15000 104 60-140103 0 3015000214003690036800 1,2-Dichloroethane-d4 (S)%92 70-13094 4-Bromofluorobenzene (S)%97 70-13096 Toluene-d8 (S)%98 70-13098 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92528786 Williams Grocery Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 608833 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92528786001, 92528786002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3206735 Associated Lab Samples:92528786001, 92528786002 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.31 0.50 03/24/21 10:500.31 1,1,1-Trichloroethane ug/L <0.33 0.50 03/24/21 10:500.33 1,1,2,2-Tetrachloroethane ug/L <0.22 0.50 03/24/21 10:500.22 1,1,2-Trichloroethane ug/L <0.32 0.50 03/24/21 10:500.32 1,1-Dichloroethane ug/L <0.37 0.50 03/24/21 10:500.37 1,1-Dichloroethene ug/L <0.35 0.50 03/24/21 10:500.35 1,1-Dichloropropene ug/L <0.43 0.50 03/24/21 10:500.43 1,2,3-Trichlorobenzene ug/L <0.81 2.0 03/24/21 10:500.81 1,2,3-Trichloropropane ug/L <0.26 0.50 03/24/21 10:500.26 1,2,4-Trichlorobenzene ug/L <0.64 2.0 03/24/21 10:500.64 1,2,4-Trimethylbenzene ug/L <0.50 0.50 03/24/21 10:500.50 1,2-Dibromo-3-chloropropane ug/L <0.34 1.0 03/24/21 10:500.34 1,2-Dibromoethane (EDB)ug/L <0.27 0.50 03/24/21 10:500.27 1,2-Dichlorobenzene ug/L <0.34 0.50 03/24/21 10:500.34 1,2-Dichloroethane ug/L <0.32 0.50 03/24/21 10:500.32 1,2-Dichloropropane ug/L <0.36 0.50 03/24/21 10:500.36 1,3,5-Trimethylbenzene ug/L <0.33 0.50 03/24/21 10:500.33 1,3-Dichlorobenzene ug/L <0.34 0.50 03/24/21 10:500.34 1,3-Dichloropropane ug/L <0.28 0.50 03/24/21 10:500.28 1,4-Dichlorobenzene ug/L <0.33 0.50 03/24/21 10:500.33 2,2-Dichloropropane ug/L <0.39 0.50 03/24/21 10:500.39 2-Butanone (MEK)ug/L <4.0 5.0 03/24/21 10:504.0 2-Chlorotoluene ug/L <0.32 0.50 03/24/21 10:500.32 2-Hexanone ug/L <0.48 5.0 03/24/21 10:500.48 4-Chlorotoluene ug/L <0.32 0.50 03/24/21 10:500.32 Benzene ug/L <0.34 0.50 03/24/21 10:500.34 Bromobenzene ug/L <0.29 0.50 03/24/21 10:500.29 Bromochloromethane ug/L <0.47 0.50 03/24/21 10:500.47 Bromodichloromethane ug/L <0.31 0.50 03/24/21 10:500.31 Bromoform ug/L <0.34 0.50 03/24/21 10:500.34 Bromomethane ug/L <1.7 5.0 03/24/21 10:501.7 Carbon tetrachloride ug/L <0.33 0.50 03/24/21 10:500.33 Chlorobenzene ug/L <0.28 0.50 03/24/21 10:500.28 Chloroethane ug/L <0.65 1.0 03/24/21 10:500.65 Chloroform ug/L <0.35 0.50 03/24/21 10:500.35 Chloromethane ug/L <0.54 1.0 03/24/21 10:500.54 cis-1,2-Dichloroethene ug/L <0.38 0.50 03/24/21 10:500.38 cis-1,3-Dichloropropene ug/L <0.36 0.50 03/24/21 10:500.36 Dibromochloromethane ug/L <0.36 0.50 03/24/21 10:500.36 Dibromomethane ug/L <0.39 0.50 03/24/21 10:500.39 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92528786 Williams Grocery Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3206735 Associated Lab Samples:92528786001, 92528786002 Matrix:Water AnalyzedMDL Dichlorodifluoromethane ug/L <0.35 0.50 03/24/21 10:500.35 Diisopropyl ether ug/L <0.31 0.50 03/24/21 10:500.31 Ethanol ug/L <72.2 200 03/24/21 10:5072.2 Ethyl-tert-butyl ether ug/L <3.2 10.0 03/24/21 10:503.2 Ethylbenzene ug/L <0.30 0.50 03/24/21 10:500.30 Hexachloro-1,3-butadiene ug/L <1.5 2.0 03/24/21 10:501.5 Isopropylbenzene (Cumene)ug/L <0.33 0.50 03/24/21 10:500.33 m&p-Xylene ug/L <0.71 1.0 03/24/21 10:500.71 Methyl-tert-butyl ether ug/L <0.42 0.50 03/24/21 10:500.42 Methylene Chloride ug/L <2.0 2.0 03/24/21 10:502.0 n-Butylbenzene ug/L <0.49 0.50 03/24/21 10:500.49 n-Propylbenzene ug/L <0.34 0.50 03/24/21 10:500.34 Naphthalene ug/L <0.64 2.0 03/24/21 10:500.64 o-Xylene ug/L <0.34 0.50 03/24/21 10:500.34 sec-Butylbenzene ug/L <0.40 0.50 03/24/21 10:500.40 Styrene ug/L <0.29 0.50 03/24/21 10:500.29 tert-Amyl Alcohol ug/L <36.4 100 03/24/21 10:5036.4 tert-Amylmethyl ether ug/L <2.7 10.0 03/24/21 10:502.7 tert-Butyl Alcohol ug/L <26.8 50.0 03/24/21 10:5026.8 tert-Butyl Formate ug/L <29.4 50.0 03/24/21 10:5029.4 tert-Butylbenzene ug/L <0.32 0.50 03/24/21 10:500.32 Tetrachloroethene ug/L <0.29 0.50 03/24/21 10:500.29 Toluene ug/L <0.48 0.50 03/24/21 10:500.48 trans-1,2-Dichloroethene ug/L <0.40 0.50 03/24/21 10:500.40 trans-1,3-Dichloropropene ug/L <0.36 0.50 03/24/21 10:500.36 Trichloroethene ug/L <0.38 0.50 03/24/21 10:500.38 Trichlorofluoromethane ug/L <0.30 1.0 03/24/21 10:500.30 Vinyl chloride ug/L <0.39 1.0 03/24/21 10:500.39 Xylene (Total)ug/L <0.34 1.0 03/24/21 10:500.34 1,2-Dichloroethane-d4 (S)%93 70-130 03/24/21 10:50 4-Bromofluorobenzene (S)%93 70-130 03/24/21 10:50 Toluene-d8 (S)%99 70-130 03/24/21 10:50 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3206736LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 47.250 94 60-140 1,1,1-Trichloroethane ug/L 43.450 87 60-140 1,1,2,2-Tetrachloroethane ug/L 45.050 90 60-140 1,1,2-Trichloroethane ug/L 47.350 95 60-140 1,1-Dichloroethane ug/L 42.450 85 60-140 1,1-Dichloroethene ug/L 44.450 89 60-140 1,1-Dichloropropene ug/L 43.550 87 60-140 1,2,3-Trichlorobenzene ug/L 49.150 98 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92528786 Williams Grocery Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3206736LABORATORY CONTROL SAMPLE: LCSSpike 1,2,3-Trichloropropane ug/L 47.950 96 60-140 1,2,4-Trichlorobenzene ug/L 49.450 99 60-140 1,2,4-Trimethylbenzene ug/L 45.150 90 60-140 1,2-Dibromo-3-chloropropane ug/L 48.050 96 60-140 1,2-Dibromoethane (EDB)ug/L 46.650 93 60-140 1,2-Dichlorobenzene ug/L 48.150 96 60-140 1,2-Dichloroethane ug/L 39.950 80 60-140 1,2-Dichloropropane ug/L 43.750 87 60-140 1,3,5-Trimethylbenzene ug/L 44.050 88 60-140 1,3-Dichlorobenzene ug/L 48.450 97 60-140 1,3-Dichloropropane ug/L 44.250 88 60-140 1,4-Dichlorobenzene ug/L 49.050 98 60-140 2,2-Dichloropropane ug/L 46.250 92 60-140 2-Butanone (MEK)ug/L 81.8100 82 60-140 2-Chlorotoluene ug/L 44.050 88 60-140 2-Hexanone ug/L 85.3100 85 60-140 4-Chlorotoluene ug/L 44.050 88 60-140 Benzene ug/L 44.950 90 60-140 Bromobenzene ug/L 45.450 91 60-140 Bromochloromethane ug/L 48.150 96 60-140 Bromodichloromethane ug/L 42.350 85 60-140 Bromoform ug/L 46.550 93 60-140 Bromomethane ug/L 47.350 95 60-140 Carbon tetrachloride ug/L 48.250 96 60-140 Chlorobenzene ug/L 47.950 96 60-140 Chloroethane ug/L 42.650 85 60-140 Chloroform ug/L 41.850 84 60-140 Chloromethane ug/L 40.850 82 60-140 cis-1,2-Dichloroethene ug/L 41.250 82 60-140 cis-1,3-Dichloropropene ug/L 46.250 92 60-140 Dibromochloromethane ug/L 47.650 95 60-140 Dibromomethane ug/L 48.850 98 60-140 Dichlorodifluoromethane ug/L 50.450 101 60-140 Diisopropyl ether ug/L 38.250 76 60-140 Ethanol ug/L 16902000 84 60-140 Ethyl-tert-butyl ether ug/L 86.1100 86 60-140 Ethylbenzene ug/L 46.450 93 60-140 Hexachloro-1,3-butadiene ug/L 46.750 93 60-140 Isopropylbenzene (Cumene)ug/L 48.050 96 60-140 m&p-Xylene ug/L 93.5100 93 60-140 Methyl-tert-butyl ether ug/L 42.650 85 60-140 Methylene Chloride ug/L 41.850 84 60-140 n-Butylbenzene ug/L 46.350 93 60-140 n-Propylbenzene ug/L 43.950 88 60-140 Naphthalene ug/L 49.650 99 60-140 o-Xylene ug/L 46.750 93 60-140 sec-Butylbenzene ug/L 45.850 92 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92528786 Williams Grocery Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3206736LABORATORY CONTROL SAMPLE: LCSSpike Styrene ug/L 47.750 95 60-140 tert-Amyl Alcohol ug/L 9731000 97 60-140 tert-Amylmethyl ether ug/L 93.5100 94 60-140 tert-Butyl Alcohol ug/L 424500 85 60-140 tert-Butyl Formate ug/L 360400 90 60-140 tert-Butylbenzene ug/L 38.450 77 60-140 Tetrachloroethene ug/L 48.950 98 60-140 Toluene ug/L 47.150 94 60-140 trans-1,2-Dichloroethene ug/L 42.950 86 60-140 trans-1,3-Dichloropropene ug/L 45.550 91 60-140 Trichloroethene ug/L 50.250 100 60-140 Trichlorofluoromethane ug/L 47.650 95 60-140 Vinyl chloride ug/L 43.350 87 60-140 Xylene (Total)ug/L 140150 93 60-140 1,2-Dichloroethane-d4 (S)%90 70-130 4-Bromofluorobenzene (S)%99 70-130 Toluene-d8 (S)%97 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 3206737MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92528948006 3206738 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 250 99 60-14099 0 30250ND248248 1,1,1-Trichloroethane ug/L 250 95 60-14094 1 30250ND237235 1,1,2,2-Tetrachloroethane ug/L 250 91 60-14090 0 30250ND226226 1,1,2-Trichloroethane ug/L 250 96 60-14098 3 30250ND240246 1,1-Dichloroethane ug/L 250 92 60-14090 2 30250ND230226 1,1-Dichloroethene ug/L 250 97 60-14096 1 30250ND243241 1,1-Dichloropropene ug/L 250 94 60-14093 1 30250ND234232 1,2,3-Trichlorobenzene ug/L 250 85 60-14092 8 30250ND212230 1,2,3-Trichloropropane ug/L 250 94 60-14091 3 30250ND234228 1,2,4-Trichlorobenzene ug/L 250 89 60-14094 5 30250ND222235 1,2,4-Trimethylbenzene ug/L 250 91 60-14092 1 30250ND233235 1,2-Dibromo-3- chloropropane ug/L 250 90 60-14090 0 30250ND224224 1,2-Dibromoethane (EDB)ug/L 250 96 60-14095 1 30250ND241239 1,2-Dichlorobenzene ug/L 250 94 60-14098 4 30250ND235244 1,2-Dichloroethane ug/L 250 83 60-14083 0 30250ND211211 1,2-Dichloropropane ug/L 250 90 60-14094 4 30250ND224234 1,3,5-Trimethylbenzene ug/L 250 92 60-14094 2 30250ND235240 1,3-Dichlorobenzene ug/L 250 96 60-14099 3 30250ND240247 1,3-Dichloropropane ug/L 250 93 60-14092 1 30250ND232231 1,4-Dichlorobenzene ug/L 250 96 60-14098 3 30250ND239246 2,2-Dichloropropane ug/L 250 84 60-14082 3 30250ND211205 2-Butanone (MEK)ug/L 500 78 60-14076 2 30500ND388381 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92528786 Williams Grocery Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3206737MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92528948006 3206738 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 2-Chlorotoluene ug/L 250 90 60-14093 4 30250ND224233 2-Hexanone ug/L 500 82 60-14081 1 30500ND410404 4-Chlorotoluene ug/L 250 89 60-14089 1 30250ND222224 Benzene ug/L 250 93 60-140110 2 30250178020102060 Bromobenzene ug/L 250 94 60-14097 3 30250ND235242 Bromochloromethane ug/L 250 99 60-14098 2 30250ND248244 Bromodichloromethane ug/L 250 89 60-14091 1 30250ND224227 Bromoform ug/L 250 92 60-14091 1 30250ND231228 Bromomethane ug/L 250 94 60-14099 4 30250ND236247 Carbon tetrachloride ug/L 250 106 60-140107 0 30250ND266267 Chlorobenzene ug/L 250 103 60-140103 0 30250ND256258 Chloroethane ug/L 250 129 60-140126 2 30250ND322316 Chloroform ug/L 250 90 60-14090 1 30250ND226225 Chloromethane ug/L 250 76 60-14082 8 30250ND190205 cis-1,2-Dichloroethene ug/L 250 89 60-14088 1 30250ND222219 cis-1,3-Dichloropropene ug/L 250 92 60-14093 1 30250ND231233 Dibromochloromethane ug/L 250 98 60-14098 1 30250ND245244 Dibromomethane ug/L 250 105 60-140104 1 30250ND263259 Dichlorodifluoromethane ug/L 250 101 60-140101 0 30250ND252252 Diisopropyl ether ug/L 250 79 60-14078 1 302508.1 206 204 Ethanol ug/L 10000 70 60-14082 16 3010000ND69908200 Ethyl-tert-butyl ether ug/L 500 88 60-14088 1 30500ND441438 Ethylbenzene ug/L 250 100 60-140100 1 302509.6 259 260 Hexachloro-1,3-butadiene ug/L 250 92 60-14096 4 30250ND231241 Isopropylbenzene (Cumene) ug/L 250 103 60-140104 1 3025018.7 276 278 m&p-Xylene ug/L 500 99 60-140100 0 30500ND505507 Methyl-tert-butyl ether ug/L 250 86 60-14086 0 3025084.7 301 299 Methylene Chloride ug/L 250 89 60-14089 0 30250ND223222 n-Butylbenzene ug/L 250 90 60-14093 3 30250ND232239 n-Propylbenzene ug/L 250 92 60-14093 2 3025012.3 242 245 Naphthalene ug/L 250 77 60-14081 4 30250ND215225 o-Xylene ug/L 250 99 60-140100 1 30250ND250251 sec-Butylbenzene ug/L 250 97 60-140101 4 30250ND243252 Styrene ug/L 250 95 60-14096 0 30250ND238239 tert-Amyl Alcohol ug/L 5000 92 60-14093 0 305000ND57705790 tert-Amylmethyl ether ug/L 500 95 60-14096 1 30500ND475479 tert-Butyl Alcohol ug/L 2500 96 60-14095 1 302500ND25602540 tert-Butyl Formate ug/L P520005260-14050 4 302000ND10401010 tert-Butylbenzene ug/L 250 82 60-14084 3 30250ND205210 Tetrachloroethene ug/L 250 105 60-140103 2 30250ND262256 Toluene ug/L 250 103 60-140102 1 302508.7 266 264 trans-1,2-Dichloroethene ug/L 250 92 60-14091 1 30250ND230227 trans-1,3-Dichloropropene ug/L 250 90 60-14091 1 30250ND224227 Trichloroethene ug/L 250 109 60-140110 1 30250ND273275 Trichlorofluoromethane ug/L 250 128 60-140127 1 30250ND320317 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 27 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92528786 Williams Grocery Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3206737MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92528948006 3206738 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Vinyl chloride ug/L 250 89 60-14089 0 30250ND222223 Xylene (Total)ug/L 750 101 60-140101 0 30750ND755758 1,2-Dichloroethane-d4 (S)%93 70-13092 4-Bromofluorobenzene (S)%97 70-13096 Toluene-d8 (S)%97 70-13098 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 27 #=QL# QUALIFIERS Pace Project No.: Project: 92528786 Williams Grocery DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS The EPA or method required sample preservation degrades this compound, therefore acceptable recoveries may not be achieved in sample matrix spikes.P5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 27 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92528786 Williams Grocery Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92528786001 608833MW-1 SM 6200B 92528786002 608833MW-3 SM 6200B 92528786003 608547RW-1 SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 03/25/2021 05:01 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 24 of 27 Page 25 of 27 Page 26 of 27 Page 27 of 27 #=CL# April 07, 2021 LIMS USE: FR - NOELLE FRANCE LIMS OBJECT ID: 92531085 92531085 Project: Pace Project No.: RE: Noelle France ATC Group Services LLC- South Charlotte 7606 Whitehall Exe Center Dr Suite 800 Charlotte, NC 28273 WILLIAMS GROCERY Dear Noelle France: Enclosed are the analytical results for sample(s) received by the laboratory on April 02, 2021. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Bonnie Vang bonnie.vang@pacelabs.com Project Manager (704)875-9092 Enclosures cc:Al Quarles, ATC REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 47 #=CP# CERTIFICATIONS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Pace Analytical Services Charlotte 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 Louisiana/NELAP Certification # LA170028 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 47 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92531085 WILLIAMS GROCERY Lab ID Sample ID Matrix Date Collected Date Received 92531085001 MW-1 Water 04/02/21 12:00 04/02/21 17:34 92531085002 MW-3 Water 04/02/21 13:15 04/02/21 17:34 92531085003 MW-5 Water 04/02/21 14:15 04/02/21 17:34 92531085004 MW-12 Water 04/02/21 11:30 04/02/21 17:34 92531085005 AS-1 Water 04/02/21 12:30 04/02/21 17:34 92531085006 TRIP BLANK Water 04/02/21 00:00 04/02/21 17:34 92531085007 WSW-1 Water 04/02/21 14:30 04/02/21 17:34 92531085008 WSW-2 Water 04/02/21 15:50 04/02/21 17:34 92531085009 WSW-6 Water 04/02/21 15:10 04/02/21 17:34 92531085010 WSW-7 Water 04/02/21 15:40 04/02/21 17:34 92531085011 FB-1 Water 04/02/21 14:30 04/02/21 17:34 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 47 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92531085 WILLIAMS GROCERY Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92531085001 MW-1 SM 6200B 70 PASI-CSAS 92531085002 MW-3 SM 6200B 70 PASI-CSAS 92531085003 MW-5 SM 6200B 70 PASI-CSAS 92531085004 MW-12 SM 6200B 70 PASI-CSAS 92531085005 AS-1 SM 6200B 70 PASI-CSAS 92531085006 TRIP BLANK SM 6200B 70 PASI-CSAS 92531085007 WSW-1 EPA 504.1 2 PASI-CBAJ SM 6200B 70 PASI-CSAS 92531085008 WSW-2 EPA 504.1 2 PASI-CBAJ SM 6200B 70 PASI-CSAS 92531085009 WSW-6 EPA 504.1 2 PASI-CBAJ SM 6200B 70 PASI-CSAS 92531085010 WSW-7 EPA 504.1 2 PASI-CBAJ SM 6200B 70 PASI-CSAS 92531085011 FB-1 EPA 504.1 2 PASI-CBAJ SM 6200B 70 PASI-CSAS PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:MW-1 Lab ID:92531085001 Collected:04/02/21 12:00 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol 12600 ug/L 04/06/21 17:02 75-85-4125004550125 tert-Amylmethyl ether <332 ug/L 04/06/21 17:02 994-05-81250332125 Benzene 15100 ug/L 04/06/21 17:02 71-43-262.5 43.1 125 Bromobenzene <36.2 ug/L 04/06/21 17:02 108-86-162.5 36.2 125 Bromochloromethane <58.5 ug/L 04/06/21 17:02 74-97-562.5 58.5 125 Bromodichloromethane <38.4 ug/L 04/06/21 17:02 75-27-462.5 38.4 125 Bromoform <42.6 ug/L 04/06/21 17:02 75-25-262.5 42.6 125 Bromomethane <208 ug/L 04/06/21 17:02 74-83-9625208125 tert-Butyl Alcohol 16000 ug/L 04/06/21 17:02 75-65-062503350125 n-Butylbenzene <61.2 ug/L 04/06/21 17:02 104-51-862.5 61.2 125 sec-Butylbenzene <50.0 ug/L 04/06/21 17:02 135-98-862.5 50.0 125 tert-Butylbenzene <40.4 ug/L 04/06/21 17:02 98-06-662.5 40.4 125 tert-Butyl Formate <3680 ug/L 04/06/21 17:02 762-75-462503680125 Carbon tetrachloride <41.6 ug/L 04/06/21 17:02 56-23-562.5 41.6 125 Chlorobenzene <35.5 ug/L 04/06/21 17:02 108-90-762.5 35.5 125 Chloroethane <81.1 ug/L 04/06/21 17:02 75-00-312581.1 125 Chloroform <44.1 ug/L 04/06/21 17:02 67-66-362.5 44.1 125 Chloromethane <67.5 ug/L 04/06/21 17:02 74-87-312567.5 125 2-Chlorotoluene <40.1 ug/L 04/06/21 17:02 95-49-862.5 40.1 125 4-Chlorotoluene <40.5 ug/L 04/06/21 17:02 106-43-462.5 40.5 125 1,2-Dibromo-3-chloropropane <42.5 ug/L 04/06/21 17:02 96-12-812542.5 125 Dibromochloromethane <44.9 ug/L 04/06/21 17:02 124-48-162.5 44.9 125 1,2-Dibromoethane (EDB)809 ug/L 04/06/21 17:02 106-93-462.5 34.0 125 Dibromomethane <49.2 ug/L 04/06/21 17:02 74-95-362.5 49.2 125 1,2-Dichlorobenzene <42.4 ug/L 04/06/21 17:02 95-50-162.5 42.4 125 1,3-Dichlorobenzene <42.5 ug/L 04/06/21 17:02 541-73-162.5 42.5 125 1,4-Dichlorobenzene <41.6 ug/L 04/06/21 17:02 106-46-762.5 41.6 125 Dichlorodifluoromethane <43.2 ug/L 04/06/21 17:02 75-71-862.5 43.2 125 1,1-Dichloroethane <45.9 ug/L 04/06/21 17:02 75-34-362.5 45.9 125 1,2-Dichloroethane 1060 ug/L 04/06/21 17:02 107-06-262.5 40.2 125 1,1-Dichloroethene <43.5 ug/L 04/06/21 17:02 75-35-462.5 43.5 125 cis-1,2-Dichloroethene <48.0 ug/L 04/06/21 17:02 156-59-262.5 48.0 125 trans-1,2-Dichloroethene <49.5 ug/L 04/06/21 17:02 156-60-562.5 49.5 125 1,2-Dichloropropane <44.4 ug/L 04/06/21 17:02 78-87-562.5 44.4 125 1,3-Dichloropropane <35.5 ug/L 04/06/21 17:02 142-28-962.5 35.5 125 2,2-Dichloropropane <48.5 ug/L 04/06/21 17:02 594-20-762.5 48.5 125 1,1-Dichloropropene <53.4 ug/L 04/06/21 17:02 563-58-662.5 53.4 125 cis-1,3-Dichloropropene <45.6 ug/L 04/06/21 17:02 10061-01-562.5 45.6 125 trans-1,3-Dichloropropene <45.4 ug/L 04/06/21 17:02 10061-02-662.5 45.4 125 Diisopropyl ether 291 ug/L 04/06/21 17:02 108-20-362.5 38.5 125 Ethanol <9020 ug/L 04/06/21 17:02 64-17-5250009020125 Ethylbenzene 1730 ug/L 04/06/21 17:02 100-41-462.5 38.0 125 Ethyl-tert-butyl ether <405 ug/L 04/06/21 17:02 637-92-31250405125 Hexachloro-1,3-butadiene <191 ug/L 04/06/21 17:02 87-68-3250191125 Isopropylbenzene (Cumene)76.7 ug/L 04/06/21 17:02 98-82-862.5 41.6 125 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:MW-1 Lab ID:92531085001 Collected:04/02/21 12:00 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <244 ug/L 04/06/21 17:02 75-09-2250244125 Methyl-tert-butyl ether 8260 ug/L 04/06/21 17:02 1634-04-462.5 52.8 125 Naphthalene 738 ug/L 04/06/21 17:02 91-20-325080.6 125 n-Propylbenzene <42.5 ug/L 04/06/21 17:02 103-65-162.5 42.5 125 Styrene 40.0J ug/L 04/06/21 17:02 100-42-562.5 36.5 125 1,1,1,2-Tetrachloroethane <38.9 ug/L 04/06/21 17:02 630-20-662.5 38.9 125 1,1,2,2-Tetrachloroethane <28.1 ug/L 04/06/21 17:02 79-34-562.5 28.1 125 Tetrachloroethene <36.5 ug/L 04/06/21 17:02 127-18-462.5 36.5 125 Toluene 21700 ug/L 04/06/21 17:02 108-88-362.5 60.6 125 1,2,3-Trichlorobenzene <101 ug/L 04/06/21 17:02 87-61-6250101125 1,2,4-Trichlorobenzene <79.9 ug/L 04/06/21 17:02 120-82-125079.9 125 1,1,1-Trichloroethane <41.5 ug/L 04/06/21 17:02 71-55-662.5 41.5 125 1,1,2-Trichloroethane <40.6 ug/L 04/06/21 17:02 79-00-562.5 40.6 125 Trichloroethene <47.9 ug/L 04/06/21 17:02 79-01-662.5 47.9 125 Trichlorofluoromethane <37.2 ug/L 04/06/21 17:02 75-69-412537.2 125 1,2,3-Trichloropropane <32.6 ug/L 04/06/21 17:02 96-18-462.5 32.6 125 1,2,4-Trimethylbenzene 2200 ug/L 04/06/21 17:02 95-63-662.5 61.9 125 1,3,5-Trimethylbenzene 658 ug/L 04/06/21 17:02 108-67-862.5 41.5 125 Vinyl chloride <48.2 ug/L 04/06/21 17:02 75-01-412548.2 125 Xylene (Total)12800 ug/L 04/06/21 17:02 1330-20-712542.2 125 m&p-Xylene 8690 ug/L 04/06/21 17:02 179601-23-112588.6 125 o-Xylene 4080 ug/L 04/06/21 17:02 95-47-662.5 42.2 125 Surrogates 1,2-Dichloroethane-d4 (S)99 %04/06/21 17:02 17060-07-070-130 125 4-Bromofluorobenzene (S)98 %04/06/21 17:02 460-00-470-130 125 Toluene-d8 (S)102 %04/06/21 17:02 2037-26-570-130 125 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:MW-3 Lab ID:92531085002 Collected:04/02/21 13:15 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <7280 ug/L 04/06/21 17:20 75-85-4200007280200 tert-Amylmethyl ether <532 ug/L 04/06/21 17:20 994-05-82000532200 Benzene 15300 ug/L 04/06/21 17:20 71-43-210069.0 200 Bromobenzene <58.0 ug/L 04/06/21 17:20 108-86-110058.0 200 Bromochloromethane <93.6 ug/L 04/06/21 17:20 74-97-510093.6 200 Bromodichloromethane <61.4 ug/L 04/06/21 17:20 75-27-410061.4 200 Bromoform <68.2 ug/L 04/06/21 17:20 75-25-210068.2 200 Bromomethane <332 ug/L 04/06/21 17:20 74-83-91000332200 tert-Butyl Alcohol <5360 ug/L 04/06/21 17:20 75-65-0100005360200 n-Butylbenzene <98.0 ug/L 04/06/21 17:20 104-51-810098.0 200 sec-Butylbenzene <80.0 ug/L 04/06/21 17:20 135-98-810080.0 200 tert-Butylbenzene <64.6 ug/L 04/06/21 17:20 98-06-610064.6 200 tert-Butyl Formate <5880 ug/L 04/06/21 17:20 762-75-4100005880200 Carbon tetrachloride <66.6 ug/L 04/06/21 17:20 56-23-510066.6 200 Chlorobenzene <56.8 ug/L 04/06/21 17:20 108-90-710056.8 200 Chloroethane <130 ug/L 04/06/21 17:20 75-00-3200130200 Chloroform <70.6 ug/L 04/06/21 17:20 67-66-310070.6 200 Chloromethane <108 ug/L 04/06/21 17:20 74-87-3200108200 2-Chlorotoluene <64.2 ug/L 04/06/21 17:20 95-49-810064.2 200 4-Chlorotoluene <64.8 ug/L 04/06/21 17:20 106-43-410064.8 200 1,2-Dibromo-3-chloropropane <68.0 ug/L 04/06/21 17:20 96-12-820068.0 200 Dibromochloromethane <71.8 ug/L 04/06/21 17:20 124-48-110071.8 200 1,2-Dibromoethane (EDB)673 ug/L 04/06/21 17:20 106-93-410054.4 200 Dibromomethane <78.8 ug/L 04/06/21 17:20 74-95-310078.8 200 1,2-Dichlorobenzene <67.8 ug/L 04/06/21 17:20 95-50-110067.8 200 1,3-Dichlorobenzene <68.0 ug/L 04/06/21 17:20 541-73-110068.0 200 1,4-Dichlorobenzene <66.6 ug/L 04/06/21 17:20 106-46-710066.6 200 Dichlorodifluoromethane <69.2 ug/L 04/06/21 17:20 75-71-810069.2 200 1,1-Dichloroethane <73.4 ug/L 04/06/21 17:20 75-34-310073.4 200 1,2-Dichloroethane 195 ug/L 04/06/21 17:20 107-06-210064.4 200 1,1-Dichloroethene <69.6 ug/L 04/06/21 17:20 75-35-410069.6 200 cis-1,2-Dichloroethene <76.8 ug/L 04/06/21 17:20 156-59-210076.8 200 trans-1,2-Dichloroethene <79.2 ug/L 04/06/21 17:20 156-60-510079.2 200 1,2-Dichloropropane <71.0 ug/L 04/06/21 17:20 78-87-510071.0 200 1,3-Dichloropropane <56.8 ug/L 04/06/21 17:20 142-28-910056.8 200 2,2-Dichloropropane <77.6 ug/L 04/06/21 17:20 594-20-710077.6 200 1,1-Dichloropropene <85.4 ug/L 04/06/21 17:20 563-58-610085.4 200 cis-1,3-Dichloropropene <73.0 ug/L 04/06/21 17:20 10061-01-510073.0 200 trans-1,3-Dichloropropene <72.6 ug/L 04/06/21 17:20 10061-02-610072.6 200 Diisopropyl ether <61.6 ug/L 04/06/21 17:20 108-20-310061.6 200 Ethanol <14400 ug/L 04/06/21 17:20 64-17-54000014400200 Ethylbenzene 2220 ug/L 04/06/21 17:20 100-41-410060.8 200 Ethyl-tert-butyl ether <648 ug/L 04/06/21 17:20 637-92-32000648200 Hexachloro-1,3-butadiene <306 ug/L 04/06/21 17:20 87-68-3400306200 Isopropylbenzene (Cumene)106 ug/L 04/06/21 17:20 98-82-810066.6 200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:MW-3 Lab ID:92531085002 Collected:04/02/21 13:15 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <390 ug/L 04/06/21 17:20 75-09-2400390200 Methyl-tert-butyl ether <84.4 ug/L 04/06/21 17:20 1634-04-410084.4 200 Naphthalene 990 ug/L 04/06/21 17:20 91-20-3400129200 n-Propylbenzene <68.0 ug/L 04/06/21 17:20 103-65-110068.0 200 Styrene 75.4J ug/L 04/06/21 17:20 100-42-510058.4 200 1,1,1,2-Tetrachloroethane <62.2 ug/L 04/06/21 17:20 630-20-610062.2 200 1,1,2,2-Tetrachloroethane <45.0 ug/L 04/06/21 17:20 79-34-510045.0 200 Tetrachloroethene <58.4 ug/L 04/06/21 17:20 127-18-410058.4 200 Toluene 28400 ug/L 04/06/21 17:20 108-88-310097.0 200 1,2,3-Trichlorobenzene <161 ug/L 04/06/21 17:20 87-61-6400161200 1,2,4-Trichlorobenzene <128 ug/L 04/06/21 17:20 120-82-1400128200 1,1,1-Trichloroethane <66.4 ug/L 04/06/21 17:20 71-55-610066.4 200 1,1,2-Trichloroethane <65.0 ug/L 04/06/21 17:20 79-00-510065.0 200 Trichloroethene <76.6 ug/L 04/06/21 17:20 79-01-610076.6 200 Trichlorofluoromethane <59.6 ug/L 04/06/21 17:20 75-69-420059.6 200 1,2,3-Trichloropropane <52.2 ug/L 04/06/21 17:20 96-18-410052.2 200 1,2,4-Trimethylbenzene 2730 ug/L 04/06/21 17:20 95-63-610099.0 200 1,3,5-Trimethylbenzene <66.4 ug/L 04/06/21 17:20 108-67-810066.4 200 Vinyl chloride <77.2 ug/L 04/06/21 17:20 75-01-420077.2 200 Xylene (Total)15000 ug/L 04/06/21 17:20 1330-20-720067.6 200 m&p-Xylene 10100 ug/L 04/06/21 17:20 179601-23-1200142200 o-Xylene 4930 ug/L 04/06/21 17:20 95-47-610067.6 200 Surrogates 1,2-Dichloroethane-d4 (S)99 %04/06/21 17:20 17060-07-070-130 200 4-Bromofluorobenzene (S)98 %04/06/21 17:20 460-00-470-130 200 Toluene-d8 (S)100 %04/06/21 17:20 2037-26-570-130 200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:MW-5 Lab ID:92531085003 Collected:04/02/21 14:15 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <36.4 ug/L 04/06/21 04:14 75-85-410036.4 1 tert-Amylmethyl ether <2.7 ug/L 04/06/21 04:14 994-05-810.0 2.7 1 Benzene 4.5 ug/L 04/06/21 04:14 71-43-20.50 0.34 1 Bromobenzene <0.29 ug/L 04/06/21 04:14 108-86-10.50 0.29 1 Bromochloromethane <0.47 ug/L 04/06/21 04:14 74-97-50.50 0.47 1 Bromodichloromethane <0.31 ug/L 04/06/21 04:14 75-27-40.50 0.31 1 Bromoform <0.34 ug/L 04/06/21 04:14 75-25-20.50 0.34 1 Bromomethane <1.7 ug/L 04/06/21 04:14 74-83-95.0 1.7 1 tert-Butyl Alcohol <26.8 ug/L 04/06/21 04:14 75-65-050.0 26.8 1 n-Butylbenzene 0.76 ug/L 04/06/21 04:14 104-51-80.50 0.49 1 sec-Butylbenzene <0.40 ug/L 04/06/21 04:14 135-98-80.50 0.40 1 tert-Butylbenzene <0.32 ug/L 04/06/21 04:14 98-06-60.50 0.32 1 tert-Butyl Formate <29.4 ug/L 04/06/21 04:14 762-75-450.0 29.4 1 Carbon tetrachloride <0.33 ug/L 04/06/21 04:14 56-23-50.50 0.33 1 Chlorobenzene <0.28 ug/L 04/06/21 04:14 108-90-70.50 0.28 1 Chloroethane <0.65 ug/L 04/06/21 04:14 75-00-31.0 0.65 1 Chloroform <0.35 ug/L 04/06/21 04:14 67-66-30.50 0.35 1 Chloromethane <0.54 ug/L 04/06/21 04:14 74-87-31.0 0.54 1 2-Chlorotoluene <0.32 ug/L 04/06/21 04:14 95-49-80.50 0.32 1 4-Chlorotoluene <0.32 ug/L 04/06/21 04:14 106-43-40.50 0.32 1 1,2-Dibromo-3-chloropropane <0.34 ug/L 04/06/21 04:14 96-12-81.0 0.34 1 Dibromochloromethane <0.36 ug/L 04/06/21 04:14 124-48-10.50 0.36 1 1,2-Dibromoethane (EDB)<0.27 ug/L 04/06/21 04:14 106-93-40.50 0.27 1 Dibromomethane <0.39 ug/L 04/06/21 04:14 74-95-30.50 0.39 1 1,2-Dichlorobenzene <0.34 ug/L 04/06/21 04:14 95-50-10.50 0.34 1 1,3-Dichlorobenzene <0.34 ug/L 04/06/21 04:14 541-73-10.50 0.34 1 1,4-Dichlorobenzene <0.33 ug/L 04/06/21 04:14 106-46-70.50 0.33 1 Dichlorodifluoromethane <0.35 ug/L 04/06/21 04:14 75-71-80.50 0.35 1 1,1-Dichloroethane <0.37 ug/L 04/06/21 04:14 75-34-30.50 0.37 1 1,2-Dichloroethane <0.32 ug/L 04/06/21 04:14 107-06-20.50 0.32 1 1,1-Dichloroethene <0.35 ug/L 04/06/21 04:14 75-35-40.50 0.35 1 cis-1,2-Dichloroethene <0.38 ug/L 04/06/21 04:14 156-59-20.50 0.38 1 trans-1,2-Dichloroethene <0.40 ug/L 04/06/21 04:14 156-60-50.50 0.40 1 1,2-Dichloropropane <0.36 ug/L 04/06/21 04:14 78-87-50.50 0.36 1 1,3-Dichloropropane <0.28 ug/L 04/06/21 04:14 142-28-90.50 0.28 1 2,2-Dichloropropane <0.39 ug/L 04/06/21 04:14 594-20-70.50 0.39 1 1,1-Dichloropropene <0.43 ug/L 04/06/21 04:14 563-58-60.50 0.43 1 cis-1,3-Dichloropropene <0.36 ug/L 04/06/21 04:14 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.36 ug/L 04/06/21 04:14 10061-02-60.50 0.36 1 Diisopropyl ether <0.31 ug/L 04/06/21 04:14 108-20-30.50 0.31 1 Ethanol <72.2 ug/L 04/06/21 04:14 64-17-520072.2 1 Ethylbenzene 2.1 ug/L 04/06/21 04:14 100-41-40.50 0.30 1 Ethyl-tert-butyl ether <3.2 ug/L 04/06/21 04:14 637-92-310.0 3.2 1 Hexachloro-1,3-butadiene <1.5 ug/L 04/06/21 04:14 87-68-32.0 1.5 1 Isopropylbenzene (Cumene)<0.33 ug/L 04/06/21 04:14 98-82-80.50 0.33 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:MW-5 Lab ID:92531085003 Collected:04/02/21 14:15 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <2.0 ug/L 04/06/21 04:14 75-09-22.0 2.0 1 Methyl-tert-butyl ether <0.42 ug/L 04/06/21 04:14 1634-04-40.50 0.42 1 Naphthalene 1.6J ug/L 04/06/21 04:14 91-20-32.0 0.64 1 n-Propylbenzene <0.34 ug/L 04/06/21 04:14 103-65-10.50 0.34 1 Styrene <0.29 ug/L 04/06/21 04:14 100-42-50.50 0.29 1 1,1,1,2-Tetrachloroethane <0.31 ug/L 04/06/21 04:14 630-20-60.50 0.31 1 1,1,2,2-Tetrachloroethane <0.22 ug/L 04/06/21 04:14 79-34-50.50 0.22 1 Tetrachloroethene <0.29 ug/L 04/06/21 04:14 127-18-40.50 0.29 1 Toluene 12.6 ug/L 04/06/21 04:14 108-88-30.50 0.48 1 1,2,3-Trichlorobenzene <0.81 ug/L 04/06/21 04:14 87-61-62.0 0.81 1 1,2,4-Trichlorobenzene <0.64 ug/L 04/06/21 04:14 120-82-12.0 0.64 1 1,1,1-Trichloroethane <0.33 ug/L 04/06/21 04:14 71-55-60.50 0.33 1 1,1,2-Trichloroethane <0.32 ug/L 04/06/21 04:14 79-00-50.50 0.32 1 Trichloroethene <0.38 ug/L 04/06/21 04:14 79-01-60.50 0.38 1 Trichlorofluoromethane <0.30 ug/L 04/06/21 04:14 75-69-41.0 0.30 1 1,2,3-Trichloropropane <0.26 ug/L 04/06/21 04:14 96-18-40.50 0.26 1 1,2,4-Trimethylbenzene 9.9 ug/L 04/06/21 04:14 95-63-60.50 0.50 1 1,3,5-Trimethylbenzene 3.5 ug/L 04/06/21 04:14 108-67-80.50 0.33 1 Vinyl chloride <0.39 ug/L 04/06/21 04:14 75-01-41.0 0.39 1 Xylene (Total)17.9 ug/L 04/06/21 04:14 1330-20-71.0 0.34 1 m&p-Xylene 12.1 ug/L 04/06/21 04:14 179601-23-11.0 0.71 1 o-Xylene 5.8 ug/L 04/06/21 04:14 95-47-60.50 0.34 1 Surrogates 1,2-Dichloroethane-d4 (S)101 %04/06/21 04:14 17060-07-070-130 1 4-Bromofluorobenzene (S)98 %04/06/21 04:14 460-00-470-130 1 Toluene-d8 (S)101 %04/06/21 04:14 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:MW-12 Lab ID:92531085004 Collected:04/02/21 11:30 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <36.4 ug/L 04/06/21 03:56 75-85-410036.4 1 tert-Amylmethyl ether <2.7 ug/L 04/06/21 03:56 994-05-810.0 2.7 1 Benzene <0.34 ug/L 04/06/21 03:56 71-43-20.50 0.34 1 Bromobenzene <0.29 ug/L 04/06/21 03:56 108-86-10.50 0.29 1 Bromochloromethane <0.47 ug/L 04/06/21 03:56 74-97-50.50 0.47 1 Bromodichloromethane <0.31 ug/L 04/06/21 03:56 75-27-40.50 0.31 1 Bromoform <0.34 ug/L 04/06/21 03:56 75-25-20.50 0.34 1 Bromomethane <1.7 ug/L 04/06/21 03:56 74-83-95.0 1.7 1 tert-Butyl Alcohol <26.8 ug/L 04/06/21 03:56 75-65-050.0 26.8 1 n-Butylbenzene <0.49 ug/L 04/06/21 03:56 104-51-80.50 0.49 1 sec-Butylbenzene <0.40 ug/L 04/06/21 03:56 135-98-80.50 0.40 1 tert-Butylbenzene <0.32 ug/L 04/06/21 03:56 98-06-60.50 0.32 1 tert-Butyl Formate <29.4 ug/L 04/06/21 03:56 762-75-450.0 29.4 1 Carbon tetrachloride <0.33 ug/L 04/06/21 03:56 56-23-50.50 0.33 1 Chlorobenzene <0.28 ug/L 04/06/21 03:56 108-90-70.50 0.28 1 Chloroethane <0.65 ug/L 04/06/21 03:56 75-00-31.0 0.65 1 Chloroform <0.35 ug/L 04/06/21 03:56 67-66-30.50 0.35 1 Chloromethane <0.54 ug/L 04/06/21 03:56 74-87-31.0 0.54 1 2-Chlorotoluene <0.32 ug/L 04/06/21 03:56 95-49-80.50 0.32 1 4-Chlorotoluene <0.32 ug/L 04/06/21 03:56 106-43-40.50 0.32 1 1,2-Dibromo-3-chloropropane <0.34 ug/L 04/06/21 03:56 96-12-81.0 0.34 1 Dibromochloromethane <0.36 ug/L 04/06/21 03:56 124-48-10.50 0.36 1 1,2-Dibromoethane (EDB)<0.27 ug/L 04/06/21 03:56 106-93-40.50 0.27 1 Dibromomethane <0.39 ug/L 04/06/21 03:56 74-95-30.50 0.39 1 1,2-Dichlorobenzene <0.34 ug/L 04/06/21 03:56 95-50-10.50 0.34 1 1,3-Dichlorobenzene <0.34 ug/L 04/06/21 03:56 541-73-10.50 0.34 1 1,4-Dichlorobenzene <0.33 ug/L 04/06/21 03:56 106-46-70.50 0.33 1 Dichlorodifluoromethane <0.35 ug/L 04/06/21 03:56 75-71-80.50 0.35 1 1,1-Dichloroethane <0.37 ug/L 04/06/21 03:56 75-34-30.50 0.37 1 1,2-Dichloroethane <0.32 ug/L 04/06/21 03:56 107-06-20.50 0.32 1 1,1-Dichloroethene <0.35 ug/L 04/06/21 03:56 75-35-40.50 0.35 1 cis-1,2-Dichloroethene <0.38 ug/L 04/06/21 03:56 156-59-20.50 0.38 1 trans-1,2-Dichloroethene <0.40 ug/L 04/06/21 03:56 156-60-50.50 0.40 1 1,2-Dichloropropane <0.36 ug/L 04/06/21 03:56 78-87-50.50 0.36 1 1,3-Dichloropropane <0.28 ug/L 04/06/21 03:56 142-28-90.50 0.28 1 2,2-Dichloropropane <0.39 ug/L 04/06/21 03:56 594-20-70.50 0.39 1 1,1-Dichloropropene <0.43 ug/L 04/06/21 03:56 563-58-60.50 0.43 1 cis-1,3-Dichloropropene <0.36 ug/L 04/06/21 03:56 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.36 ug/L 04/06/21 03:56 10061-02-60.50 0.36 1 Diisopropyl ether <0.31 ug/L 04/06/21 03:56 108-20-30.50 0.31 1 Ethanol <72.2 ug/L 04/06/21 03:56 64-17-520072.2 1 Ethylbenzene <0.30 ug/L 04/06/21 03:56 100-41-40.50 0.30 1 Ethyl-tert-butyl ether <3.2 ug/L 04/06/21 03:56 637-92-310.0 3.2 1 Hexachloro-1,3-butadiene <1.5 ug/L 04/06/21 03:56 87-68-32.0 1.5 1 Isopropylbenzene (Cumene)<0.33 ug/L 04/06/21 03:56 98-82-80.50 0.33 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:MW-12 Lab ID:92531085004 Collected:04/02/21 11:30 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <2.0 ug/L 04/06/21 03:56 75-09-22.0 2.0 1 Methyl-tert-butyl ether <0.42 ug/L 04/06/21 03:56 1634-04-40.50 0.42 1 Naphthalene <0.64 ug/L 04/06/21 03:56 91-20-32.0 0.64 1 n-Propylbenzene <0.34 ug/L 04/06/21 03:56 103-65-10.50 0.34 1 Styrene <0.29 ug/L 04/06/21 03:56 100-42-50.50 0.29 1 1,1,1,2-Tetrachloroethane <0.31 ug/L 04/06/21 03:56 630-20-60.50 0.31 1 1,1,2,2-Tetrachloroethane <0.22 ug/L 04/06/21 03:56 79-34-50.50 0.22 1 Tetrachloroethene <0.29 ug/L 04/06/21 03:56 127-18-40.50 0.29 1 Toluene <0.48 ug/L 04/06/21 03:56 108-88-30.50 0.48 1 1,2,3-Trichlorobenzene <0.81 ug/L 04/06/21 03:56 87-61-62.0 0.81 1 1,2,4-Trichlorobenzene <0.64 ug/L 04/06/21 03:56 120-82-12.0 0.64 1 1,1,1-Trichloroethane <0.33 ug/L 04/06/21 03:56 71-55-60.50 0.33 1 1,1,2-Trichloroethane <0.32 ug/L 04/06/21 03:56 79-00-50.50 0.32 1 Trichloroethene <0.38 ug/L 04/06/21 03:56 79-01-60.50 0.38 1 Trichlorofluoromethane <0.30 ug/L 04/06/21 03:56 75-69-41.0 0.30 1 1,2,3-Trichloropropane <0.26 ug/L 04/06/21 03:56 96-18-40.50 0.26 1 1,2,4-Trimethylbenzene <0.50 ug/L 04/06/21 03:56 95-63-60.50 0.50 1 1,3,5-Trimethylbenzene <0.33 ug/L 04/06/21 03:56 108-67-80.50 0.33 1 Vinyl chloride <0.39 ug/L 04/06/21 03:56 75-01-41.0 0.39 1 Xylene (Total)<0.34 ug/L 04/06/21 03:56 1330-20-71.0 0.34 1 m&p-Xylene <0.71 ug/L 04/06/21 03:56 179601-23-11.0 0.71 1 o-Xylene <0.34 ug/L 04/06/21 03:56 95-47-60.50 0.34 1 Surrogates 1,2-Dichloroethane-d4 (S)99 %04/06/21 03:56 17060-07-070-130 1 4-Bromofluorobenzene (S)99 %04/06/21 03:56 460-00-470-130 1 Toluene-d8 (S)107 %04/06/21 03:56 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:AS-1 Lab ID:92531085005 Collected:04/02/21 12:30 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol 2070 ug/L 04/06/21 22:08 75-85-410036.4 1 tert-Amylmethyl ether 8.0J ug/L 04/06/21 22:08 994-05-810.0 2.7 1 Benzene 11.1 ug/L 04/06/21 22:08 71-43-20.50 0.34 1 Bromobenzene <0.29 ug/L 04/06/21 22:08 108-86-10.50 0.29 1 Bromochloromethane <0.47 ug/L 04/06/21 22:08 74-97-50.50 0.47 1 Bromodichloromethane <0.31 ug/L 04/06/21 22:08 75-27-40.50 0.31 1 Bromoform <0.34 ug/L 04/06/21 22:08 75-25-20.50 0.34 1 Bromomethane <1.7 ug/L 04/06/21 22:08 74-83-95.0 1.7 1 tert-Butyl Alcohol 101 ug/L 04/06/21 22:08 75-65-050.0 26.8 1 n-Butylbenzene <0.49 ug/L 04/06/21 22:08 104-51-80.50 0.49 1 sec-Butylbenzene <0.40 ug/L 04/06/21 22:08 135-98-80.50 0.40 1 tert-Butylbenzene <0.32 ug/L 04/06/21 22:08 98-06-60.50 0.32 1 tert-Butyl Formate <29.4 ug/L 04/06/21 22:08 762-75-450.0 29.4 1 Carbon tetrachloride <0.33 ug/L 04/06/21 22:08 56-23-50.50 0.33 1 Chlorobenzene <0.28 ug/L 04/06/21 22:08 108-90-70.50 0.28 1 Chloroethane <0.65 ug/L 04/06/21 22:08 75-00-31.0 0.65 1 Chloroform <0.35 ug/L 04/06/21 22:08 67-66-30.50 0.35 1 Chloromethane <0.54 ug/L 04/06/21 22:08 74-87-31.0 0.54 1 2-Chlorotoluene <0.32 ug/L 04/06/21 22:08 95-49-80.50 0.32 1 4-Chlorotoluene <0.32 ug/L 04/06/21 22:08 106-43-40.50 0.32 1 1,2-Dibromo-3-chloropropane <0.34 ug/L 04/06/21 22:08 96-12-81.0 0.34 1 Dibromochloromethane <0.36 ug/L 04/06/21 22:08 124-48-10.50 0.36 1 1,2-Dibromoethane (EDB)0.74 ug/L 04/06/21 22:08 106-93-40.50 0.27 1 Dibromomethane <0.39 ug/L 04/06/21 22:08 74-95-30.50 0.39 1 1,2-Dichlorobenzene <0.34 ug/L 04/06/21 22:08 95-50-10.50 0.34 1 1,3-Dichlorobenzene <0.34 ug/L 04/06/21 22:08 541-73-10.50 0.34 1 1,4-Dichlorobenzene <0.33 ug/L 04/06/21 22:08 106-46-70.50 0.33 1 Dichlorodifluoromethane <0.35 ug/L 04/06/21 22:08 75-71-80.50 0.35 1 1,1-Dichloroethane <0.37 ug/L 04/06/21 22:08 75-34-30.50 0.37 1 1,2-Dichloroethane 24.9 ug/L 04/06/21 22:08 107-06-20.50 0.32 1 1,1-Dichloroethene <0.35 ug/L 04/06/21 22:08 75-35-40.50 0.35 1 cis-1,2-Dichloroethene <0.38 ug/L 04/06/21 22:08 156-59-20.50 0.38 1 trans-1,2-Dichloroethene <0.40 ug/L 04/06/21 22:08 156-60-50.50 0.40 1 1,2-Dichloropropane 0.49J ug/L 04/06/21 22:08 78-87-50.50 0.36 1 1,3-Dichloropropane <0.28 ug/L 04/06/21 22:08 142-28-90.50 0.28 1 2,2-Dichloropropane <0.39 ug/L 04/06/21 22:08 594-20-70.50 0.39 1 1,1-Dichloropropene <0.43 ug/L 04/06/21 22:08 563-58-60.50 0.43 1 cis-1,3-Dichloropropene <0.36 ug/L 04/06/21 22:08 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.36 ug/L 04/06/21 22:08 10061-02-60.50 0.36 1 Diisopropyl ether 10 ug/L 04/06/21 22:08 108-20-30.50 0.31 1 Ethanol <72.2 ug/L 04/06/21 22:08 64-17-520072.2 1 Ethylbenzene 1.0 ug/L 04/06/21 22:08 100-41-40.50 0.30 1 Ethyl-tert-butyl ether <3.2 ug/L 04/06/21 22:08 637-92-310.0 3.2 1 Hexachloro-1,3-butadiene <1.5 ug/L 04/06/21 22:08 87-68-32.0 1.5 1 Isopropylbenzene (Cumene)<0.33 ug/L 04/06/21 22:08 98-82-80.50 0.33 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:AS-1 Lab ID:92531085005 Collected:04/02/21 12:30 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <2.0 ug/L 04/06/21 22:08 75-09-22.0 2.0 1 Methyl-tert-butyl ether 24.4 ug/L 04/06/21 22:08 1634-04-40.50 0.42 1 Naphthalene 2.3 ug/L 04/06/21 22:08 91-20-32.0 0.64 1 n-Propylbenzene <0.34 ug/L 04/06/21 22:08 103-65-10.50 0.34 1 Styrene <0.29 ug/L 04/06/21 22:08 100-42-50.50 0.29 1 1,1,1,2-Tetrachloroethane <0.31 ug/L 04/06/21 22:08 630-20-60.50 0.31 1 1,1,2,2-Tetrachloroethane <0.22 ug/L 04/06/21 22:08 79-34-50.50 0.22 1 Tetrachloroethene <0.29 ug/L 04/06/21 22:08 127-18-40.50 0.29 1 Toluene 5.2 ug/L 04/06/21 22:08 108-88-30.50 0.48 1 1,2,3-Trichlorobenzene <0.81 ug/L 04/06/21 22:08 87-61-62.0 0.81 1 1,2,4-Trichlorobenzene <0.64 ug/L 04/06/21 22:08 120-82-12.0 0.64 1 1,1,1-Trichloroethane <0.33 ug/L 04/06/21 22:08 71-55-60.50 0.33 1 1,1,2-Trichloroethane <0.32 ug/L 04/06/21 22:08 79-00-50.50 0.32 1 Trichloroethene <0.38 ug/L 04/06/21 22:08 79-01-60.50 0.38 1 Trichlorofluoromethane <0.30 ug/L 04/06/21 22:08 75-69-41.0 0.30 1 1,2,3-Trichloropropane <0.26 ug/L 04/06/21 22:08 96-18-40.50 0.26 1 1,2,4-Trimethylbenzene 1.2 ug/L 04/06/21 22:08 95-63-60.50 0.50 1 1,3,5-Trimethylbenzene <0.33 ug/L 04/06/21 22:08 108-67-80.50 0.33 1 Vinyl chloride <0.39 ug/L 04/06/21 22:08 75-01-41.0 0.39 1 Xylene (Total)20.7 ug/L 04/06/21 22:08 1330-20-71.0 0.34 1 m&p-Xylene 4.8 ug/L 04/06/21 22:08 179601-23-11.0 0.71 1 o-Xylene 15.9 ug/L 04/06/21 22:08 95-47-60.50 0.34 1 Surrogates 1,2-Dichloroethane-d4 (S)102 %04/06/21 22:08 17060-07-070-130 1 4-Bromofluorobenzene (S)99 %04/06/21 22:08 460-00-470-130 1 Toluene-d8 (S)102 %04/06/21 22:08 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:TRIP BLANK Lab ID:92531085006 Collected:04/02/21 00:00 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <36.4 ug/L 04/05/21 22:49 75-85-410036.4 1 tert-Amylmethyl ether <2.7 ug/L 04/05/21 22:49 994-05-810.0 2.7 1 Benzene <0.34 ug/L 04/05/21 22:49 71-43-20.50 0.34 1 Bromobenzene <0.29 ug/L 04/05/21 22:49 108-86-10.50 0.29 1 Bromochloromethane <0.47 ug/L 04/05/21 22:49 74-97-50.50 0.47 1 Bromodichloromethane <0.31 ug/L 04/05/21 22:49 75-27-40.50 0.31 1 Bromoform <0.34 ug/L 04/05/21 22:49 75-25-20.50 0.34 1 Bromomethane <1.7 ug/L 04/05/21 22:49 74-83-95.0 1.7 1 tert-Butyl Alcohol <26.8 ug/L 04/05/21 22:49 75-65-050.0 26.8 1 n-Butylbenzene <0.49 ug/L 04/05/21 22:49 104-51-80.50 0.49 1 sec-Butylbenzene <0.40 ug/L 04/05/21 22:49 135-98-80.50 0.40 1 tert-Butylbenzene <0.32 ug/L 04/05/21 22:49 98-06-60.50 0.32 1 tert-Butyl Formate <29.4 ug/L 04/05/21 22:49 762-75-450.0 29.4 1 Carbon tetrachloride <0.33 ug/L 04/05/21 22:49 56-23-50.50 0.33 1 Chlorobenzene <0.28 ug/L 04/05/21 22:49 108-90-70.50 0.28 1 Chloroethane <0.65 ug/L 04/05/21 22:49 75-00-31.0 0.65 1 Chloroform <0.35 ug/L 04/05/21 22:49 67-66-30.50 0.35 1 Chloromethane <0.54 ug/L 04/05/21 22:49 74-87-31.0 0.54 1 2-Chlorotoluene <0.32 ug/L 04/05/21 22:49 95-49-80.50 0.32 1 4-Chlorotoluene <0.32 ug/L 04/05/21 22:49 106-43-40.50 0.32 1 1,2-Dibromo-3-chloropropane <0.34 ug/L 04/05/21 22:49 96-12-81.0 0.34 1 Dibromochloromethane <0.36 ug/L 04/05/21 22:49 124-48-10.50 0.36 1 1,2-Dibromoethane (EDB)<0.27 ug/L 04/05/21 22:49 106-93-40.50 0.27 1 Dibromomethane <0.39 ug/L 04/05/21 22:49 74-95-30.50 0.39 1 1,2-Dichlorobenzene <0.34 ug/L 04/05/21 22:49 95-50-10.50 0.34 1 1,3-Dichlorobenzene <0.34 ug/L 04/05/21 22:49 541-73-10.50 0.34 1 1,4-Dichlorobenzene <0.33 ug/L 04/05/21 22:49 106-46-70.50 0.33 1 Dichlorodifluoromethane <0.35 ug/L 04/05/21 22:49 75-71-80.50 0.35 1 1,1-Dichloroethane <0.37 ug/L 04/05/21 22:49 75-34-30.50 0.37 1 1,2-Dichloroethane <0.32 ug/L 04/05/21 22:49 107-06-20.50 0.32 1 1,1-Dichloroethene <0.35 ug/L 04/05/21 22:49 75-35-40.50 0.35 1 cis-1,2-Dichloroethene <0.38 ug/L 04/05/21 22:49 156-59-20.50 0.38 1 trans-1,2-Dichloroethene <0.40 ug/L 04/05/21 22:49 156-60-50.50 0.40 1 1,2-Dichloropropane <0.36 ug/L 04/05/21 22:49 78-87-50.50 0.36 1 1,3-Dichloropropane <0.28 ug/L 04/05/21 22:49 142-28-90.50 0.28 1 2,2-Dichloropropane <0.39 ug/L 04/05/21 22:49 594-20-70.50 0.39 1 1,1-Dichloropropene <0.43 ug/L 04/05/21 22:49 563-58-60.50 0.43 1 cis-1,3-Dichloropropene <0.36 ug/L 04/05/21 22:49 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.36 ug/L 04/05/21 22:49 10061-02-60.50 0.36 1 Diisopropyl ether <0.31 ug/L 04/05/21 22:49 108-20-30.50 0.31 1 Ethanol <72.2 ug/L 04/05/21 22:49 64-17-520072.2 1 Ethylbenzene <0.30 ug/L 04/05/21 22:49 100-41-40.50 0.30 1 Ethyl-tert-butyl ether <3.2 ug/L 04/05/21 22:49 637-92-310.0 3.2 1 Hexachloro-1,3-butadiene <1.5 ug/L 04/05/21 22:49 87-68-32.0 1.5 1 Isopropylbenzene (Cumene)<0.33 ug/L 04/05/21 22:49 98-82-80.50 0.33 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:TRIP BLANK Lab ID:92531085006 Collected:04/02/21 00:00 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <2.0 ug/L 04/05/21 22:49 75-09-22.0 2.0 1 Methyl-tert-butyl ether <0.42 ug/L 04/05/21 22:49 1634-04-40.50 0.42 1 Naphthalene <0.64 ug/L 04/05/21 22:49 91-20-32.0 0.64 1 n-Propylbenzene <0.34 ug/L 04/05/21 22:49 103-65-10.50 0.34 1 Styrene <0.29 ug/L 04/05/21 22:49 100-42-50.50 0.29 1 1,1,1,2-Tetrachloroethane <0.31 ug/L 04/05/21 22:49 630-20-60.50 0.31 1 1,1,2,2-Tetrachloroethane <0.22 ug/L 04/05/21 22:49 79-34-50.50 0.22 1 Tetrachloroethene <0.29 ug/L 04/05/21 22:49 127-18-40.50 0.29 1 Toluene <0.48 ug/L 04/05/21 22:49 108-88-30.50 0.48 1 1,2,3-Trichlorobenzene <0.81 ug/L 04/05/21 22:49 87-61-62.0 0.81 1 1,2,4-Trichlorobenzene <0.64 ug/L 04/05/21 22:49 120-82-12.0 0.64 1 1,1,1-Trichloroethane <0.33 ug/L 04/05/21 22:49 71-55-60.50 0.33 1 1,1,2-Trichloroethane <0.32 ug/L 04/05/21 22:49 79-00-50.50 0.32 1 Trichloroethene <0.38 ug/L 04/05/21 22:49 79-01-60.50 0.38 1 Trichlorofluoromethane <0.30 ug/L 04/05/21 22:49 75-69-41.0 0.30 1 1,2,3-Trichloropropane <0.26 ug/L 04/05/21 22:49 96-18-40.50 0.26 1 1,2,4-Trimethylbenzene <0.50 ug/L 04/05/21 22:49 95-63-60.50 0.50 1 1,3,5-Trimethylbenzene <0.33 ug/L 04/05/21 22:49 108-67-80.50 0.33 1 Vinyl chloride <0.39 ug/L 04/05/21 22:49 75-01-41.0 0.39 1 Xylene (Total)<0.34 ug/L 04/05/21 22:49 1330-20-71.0 0.34 1 m&p-Xylene <0.71 ug/L 04/05/21 22:49 179601-23-11.0 0.71 1 o-Xylene <0.34 ug/L 04/05/21 22:49 95-47-60.50 0.34 1 Surrogates 1,2-Dichloroethane-d4 (S)99 %04/05/21 22:49 17060-07-070-130 1 4-Bromofluorobenzene (S)96 %04/05/21 22:49 460-00-470-130 1 Toluene-d8 (S)101 %04/05/21 22:49 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:WSW-1 Lab ID:92531085007 Collected:04/02/21 14:30 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: EPA 504.1 Preparation Method: EPA 504.1 Pace Analytical Services - Charlotte 504 GCS EDB and DBCP 1,2-Dibromoethane (EDB)<0.013 ug/L 04/06/21 20:14 106-93-404/06/21 09:430.020 0.013 1 Surrogates 1-Chloro-2-bromopropane (S)98 %04/06/21 20:14 301-79-5604/06/21 09:4370-130 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <36.4 ug/L 04/06/21 22:26 75-85-410036.4 1 tert-Amylmethyl ether <2.7 ug/L 04/06/21 22:26 994-05-810.0 2.7 1 Benzene <0.34 ug/L 04/06/21 22:26 71-43-20.50 0.34 1 Bromobenzene <0.29 ug/L 04/06/21 22:26 108-86-10.50 0.29 1 Bromochloromethane <0.47 ug/L 04/06/21 22:26 74-97-50.50 0.47 1 Bromodichloromethane <0.31 ug/L 04/06/21 22:26 75-27-40.50 0.31 1 Bromoform <0.34 ug/L 04/06/21 22:26 75-25-20.50 0.34 1 Bromomethane <1.7 ug/L 04/06/21 22:26 74-83-95.0 1.7 1 tert-Butyl Alcohol <26.8 ug/L 04/06/21 22:26 75-65-050.0 26.8 1 n-Butylbenzene <0.49 ug/L 04/06/21 22:26 104-51-80.50 0.49 1 sec-Butylbenzene <0.40 ug/L 04/06/21 22:26 135-98-80.50 0.40 1 tert-Butylbenzene <0.32 ug/L 04/06/21 22:26 98-06-60.50 0.32 1 tert-Butyl Formate <29.4 ug/L 04/06/21 22:26 762-75-450.0 29.4 1 Carbon tetrachloride <0.33 ug/L 04/06/21 22:26 56-23-50.50 0.33 1 Chlorobenzene <0.28 ug/L 04/06/21 22:26 108-90-70.50 0.28 1 Chloroethane <0.65 ug/L 04/06/21 22:26 75-00-31.0 0.65 1 Chloroform <0.35 ug/L 04/06/21 22:26 67-66-30.50 0.35 1 Chloromethane <0.54 ug/L 04/06/21 22:26 74-87-31.0 0.54 1 2-Chlorotoluene <0.32 ug/L 04/06/21 22:26 95-49-80.50 0.32 1 4-Chlorotoluene <0.32 ug/L 04/06/21 22:26 106-43-40.50 0.32 1 1,2-Dibromo-3-chloropropane <0.34 ug/L 04/06/21 22:26 96-12-81.0 0.34 1 Dibromochloromethane <0.36 ug/L 04/06/21 22:26 124-48-10.50 0.36 1 1,2-Dibromoethane (EDB)<0.27 ug/L 04/06/21 22:26 106-93-40.50 0.27 1 Dibromomethane <0.39 ug/L 04/06/21 22:26 74-95-30.50 0.39 1 1,2-Dichlorobenzene <0.34 ug/L 04/06/21 22:26 95-50-10.50 0.34 1 1,3-Dichlorobenzene <0.34 ug/L 04/06/21 22:26 541-73-10.50 0.34 1 1,4-Dichlorobenzene <0.33 ug/L 04/06/21 22:26 106-46-70.50 0.33 1 Dichlorodifluoromethane <0.35 ug/L 04/06/21 22:26 75-71-80.50 0.35 1 1,1-Dichloroethane <0.37 ug/L 04/06/21 22:26 75-34-30.50 0.37 1 1,2-Dichloroethane <0.32 ug/L 04/06/21 22:26 107-06-20.50 0.32 1 1,1-Dichloroethene <0.35 ug/L 04/06/21 22:26 75-35-40.50 0.35 1 cis-1,2-Dichloroethene <0.38 ug/L 04/06/21 22:26 156-59-20.50 0.38 1 trans-1,2-Dichloroethene <0.40 ug/L 04/06/21 22:26 156-60-50.50 0.40 1 1,2-Dichloropropane <0.36 ug/L 04/06/21 22:26 78-87-50.50 0.36 1 1,3-Dichloropropane <0.28 ug/L 04/06/21 22:26 142-28-90.50 0.28 1 2,2-Dichloropropane <0.39 ug/L 04/06/21 22:26 594-20-70.50 0.39 1 1,1-Dichloropropene <0.43 ug/L 04/06/21 22:26 563-58-60.50 0.43 1 cis-1,3-Dichloropropene <0.36 ug/L 04/06/21 22:26 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.36 ug/L 04/06/21 22:26 10061-02-60.50 0.36 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:WSW-1 Lab ID:92531085007 Collected:04/02/21 14:30 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Diisopropyl ether <0.31 ug/L 04/06/21 22:26 108-20-30.50 0.31 1 Ethanol <72.2 ug/L 04/06/21 22:26 64-17-520072.2 1 Ethylbenzene <0.30 ug/L 04/06/21 22:26 100-41-40.50 0.30 1 Ethyl-tert-butyl ether <3.2 ug/L 04/06/21 22:26 637-92-310.0 3.2 1 Hexachloro-1,3-butadiene <1.5 ug/L 04/06/21 22:26 87-68-32.0 1.5 1 Isopropylbenzene (Cumene)<0.33 ug/L 04/06/21 22:26 98-82-80.50 0.33 1 Methylene Chloride <2.0 ug/L 04/06/21 22:26 75-09-22.0 2.0 1 Methyl-tert-butyl ether <0.42 ug/L 04/06/21 22:26 1634-04-40.50 0.42 1 Naphthalene <0.64 ug/L 04/06/21 22:26 91-20-32.0 0.64 1 n-Propylbenzene <0.34 ug/L 04/06/21 22:26 103-65-10.50 0.34 1 Styrene <0.29 ug/L 04/06/21 22:26 100-42-50.50 0.29 1 1,1,1,2-Tetrachloroethane <0.31 ug/L 04/06/21 22:26 630-20-60.50 0.31 1 1,1,2,2-Tetrachloroethane <0.22 ug/L 04/06/21 22:26 79-34-50.50 0.22 1 Tetrachloroethene <0.29 ug/L 04/06/21 22:26 127-18-40.50 0.29 1 Toluene <0.48 ug/L 04/06/21 22:26 108-88-30.50 0.48 1 1,2,3-Trichlorobenzene <0.81 ug/L 04/06/21 22:26 87-61-62.0 0.81 1 1,2,4-Trichlorobenzene <0.64 ug/L 04/06/21 22:26 120-82-12.0 0.64 1 1,1,1-Trichloroethane <0.33 ug/L 04/06/21 22:26 71-55-60.50 0.33 1 1,1,2-Trichloroethane <0.32 ug/L 04/06/21 22:26 79-00-50.50 0.32 1 Trichloroethene <0.38 ug/L 04/06/21 22:26 79-01-60.50 0.38 1 Trichlorofluoromethane <0.30 ug/L 04/06/21 22:26 75-69-41.0 0.30 1 1,2,3-Trichloropropane <0.26 ug/L 04/06/21 22:26 96-18-40.50 0.26 1 1,2,4-Trimethylbenzene <0.50 ug/L 04/06/21 22:26 95-63-60.50 0.50 1 1,3,5-Trimethylbenzene <0.33 ug/L 04/06/21 22:26 108-67-80.50 0.33 1 Vinyl chloride <0.39 ug/L 04/06/21 22:26 75-01-41.0 0.39 1 Xylene (Total)<0.34 ug/L 04/06/21 22:26 1330-20-71.0 0.34 1 m&p-Xylene <0.71 ug/L 04/06/21 22:26 179601-23-11.0 0.71 1 o-Xylene <0.34 ug/L 04/06/21 22:26 95-47-60.50 0.34 1 Surrogates 1,2-Dichloroethane-d4 (S)102 %04/06/21 22:26 17060-07-070-130 1 4-Bromofluorobenzene (S)99 %04/06/21 22:26 460-00-470-130 1 Toluene-d8 (S)102 %04/06/21 22:26 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:WSW-2 Lab ID:92531085008 Collected:04/02/21 15:50 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: EPA 504.1 Preparation Method: EPA 504.1 Pace Analytical Services - Charlotte 504 GCS EDB and DBCP 1,2-Dibromoethane (EDB)<0.013 ug/L 04/06/21 20:29 106-93-404/06/21 09:430.020 0.013 1 Surrogates 1-Chloro-2-bromopropane (S)95 %04/06/21 20:29 301-79-5604/06/21 09:4370-130 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <36.4 ug/L 04/06/21 03:02 75-85-410036.4 1 tert-Amylmethyl ether <2.7 ug/L 04/06/21 03:02 994-05-810.0 2.7 1 Benzene <0.34 ug/L 04/06/21 03:02 71-43-20.50 0.34 1 Bromobenzene <0.29 ug/L 04/06/21 03:02 108-86-10.50 0.29 1 Bromochloromethane <0.47 ug/L 04/06/21 03:02 74-97-50.50 0.47 1 Bromodichloromethane <0.31 ug/L 04/06/21 03:02 75-27-40.50 0.31 1 Bromoform <0.34 ug/L 04/06/21 03:02 75-25-20.50 0.34 1 Bromomethane <1.7 ug/L 04/06/21 03:02 74-83-95.0 1.7 1 tert-Butyl Alcohol <26.8 ug/L 04/06/21 03:02 75-65-050.0 26.8 1 n-Butylbenzene <0.49 ug/L 04/06/21 03:02 104-51-80.50 0.49 1 sec-Butylbenzene <0.40 ug/L 04/06/21 03:02 135-98-80.50 0.40 1 tert-Butylbenzene <0.32 ug/L 04/06/21 03:02 98-06-60.50 0.32 1 tert-Butyl Formate <29.4 ug/L 04/06/21 03:02 762-75-450.0 29.4 1 Carbon tetrachloride <0.33 ug/L 04/06/21 03:02 56-23-50.50 0.33 1 Chlorobenzene <0.28 ug/L 04/06/21 03:02 108-90-70.50 0.28 1 Chloroethane <0.65 ug/L 04/06/21 03:02 75-00-31.0 0.65 1 Chloroform <0.35 ug/L 04/06/21 03:02 67-66-30.50 0.35 1 Chloromethane <0.54 ug/L 04/06/21 03:02 74-87-31.0 0.54 1 2-Chlorotoluene <0.32 ug/L 04/06/21 03:02 95-49-80.50 0.32 1 4-Chlorotoluene <0.32 ug/L 04/06/21 03:02 106-43-40.50 0.32 1 1,2-Dibromo-3-chloropropane <0.34 ug/L 04/06/21 03:02 96-12-81.0 0.34 1 Dibromochloromethane <0.36 ug/L 04/06/21 03:02 124-48-10.50 0.36 1 1,2-Dibromoethane (EDB)<0.27 ug/L 04/06/21 03:02 106-93-40.50 0.27 1 Dibromomethane <0.39 ug/L 04/06/21 03:02 74-95-30.50 0.39 1 1,2-Dichlorobenzene <0.34 ug/L 04/06/21 03:02 95-50-10.50 0.34 1 1,3-Dichlorobenzene <0.34 ug/L 04/06/21 03:02 541-73-10.50 0.34 1 1,4-Dichlorobenzene <0.33 ug/L 04/06/21 03:02 106-46-70.50 0.33 1 Dichlorodifluoromethane <0.35 ug/L 04/06/21 03:02 75-71-80.50 0.35 1 1,1-Dichloroethane <0.37 ug/L 04/06/21 03:02 75-34-30.50 0.37 1 1,2-Dichloroethane <0.32 ug/L 04/06/21 03:02 107-06-20.50 0.32 1 1,1-Dichloroethene <0.35 ug/L 04/06/21 03:02 75-35-40.50 0.35 1 cis-1,2-Dichloroethene <0.38 ug/L 04/06/21 03:02 156-59-20.50 0.38 1 trans-1,2-Dichloroethene <0.40 ug/L 04/06/21 03:02 156-60-50.50 0.40 1 1,2-Dichloropropane <0.36 ug/L 04/06/21 03:02 78-87-50.50 0.36 1 1,3-Dichloropropane <0.28 ug/L 04/06/21 03:02 142-28-90.50 0.28 1 2,2-Dichloropropane <0.39 ug/L 04/06/21 03:02 594-20-70.50 0.39 1 1,1-Dichloropropene <0.43 ug/L 04/06/21 03:02 563-58-60.50 0.43 1 cis-1,3-Dichloropropene <0.36 ug/L 04/06/21 03:02 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.36 ug/L 04/06/21 03:02 10061-02-60.50 0.36 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:WSW-2 Lab ID:92531085008 Collected:04/02/21 15:50 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Diisopropyl ether <0.31 ug/L 04/06/21 03:02 108-20-30.50 0.31 1 Ethanol <72.2 ug/L 04/06/21 03:02 64-17-520072.2 1 Ethylbenzene <0.30 ug/L 04/06/21 03:02 100-41-40.50 0.30 1 Ethyl-tert-butyl ether <3.2 ug/L 04/06/21 03:02 637-92-310.0 3.2 1 Hexachloro-1,3-butadiene <1.5 ug/L 04/06/21 03:02 87-68-32.0 1.5 1 Isopropylbenzene (Cumene)<0.33 ug/L 04/06/21 03:02 98-82-80.50 0.33 1 Methylene Chloride <2.0 ug/L 04/06/21 03:02 75-09-22.0 2.0 1 Methyl-tert-butyl ether <0.42 ug/L 04/06/21 03:02 1634-04-40.50 0.42 1 Naphthalene <0.64 ug/L 04/06/21 03:02 91-20-32.0 0.64 1 n-Propylbenzene <0.34 ug/L 04/06/21 03:02 103-65-10.50 0.34 1 Styrene <0.29 ug/L 04/06/21 03:02 100-42-50.50 0.29 1 1,1,1,2-Tetrachloroethane <0.31 ug/L 04/06/21 03:02 630-20-60.50 0.31 1 1,1,2,2-Tetrachloroethane <0.22 ug/L 04/06/21 03:02 79-34-50.50 0.22 1 Tetrachloroethene <0.29 ug/L 04/06/21 03:02 127-18-40.50 0.29 1 Toluene <0.48 ug/L 04/06/21 03:02 108-88-30.50 0.48 1 1,2,3-Trichlorobenzene <0.81 ug/L 04/06/21 03:02 87-61-62.0 0.81 1 1,2,4-Trichlorobenzene <0.64 ug/L 04/06/21 03:02 120-82-12.0 0.64 1 1,1,1-Trichloroethane <0.33 ug/L 04/06/21 03:02 71-55-60.50 0.33 1 1,1,2-Trichloroethane <0.32 ug/L 04/06/21 03:02 79-00-50.50 0.32 1 Trichloroethene <0.38 ug/L 04/06/21 03:02 79-01-60.50 0.38 1 Trichlorofluoromethane <0.30 ug/L 04/06/21 03:02 75-69-41.0 0.30 1 1,2,3-Trichloropropane <0.26 ug/L 04/06/21 03:02 96-18-40.50 0.26 1 1,2,4-Trimethylbenzene <0.50 ug/L 04/06/21 03:02 95-63-60.50 0.50 1 1,3,5-Trimethylbenzene <0.33 ug/L 04/06/21 03:02 108-67-80.50 0.33 1 Vinyl chloride <0.39 ug/L 04/06/21 03:02 75-01-41.0 0.39 1 Xylene (Total)<0.34 ug/L 04/06/21 03:02 1330-20-71.0 0.34 1 m&p-Xylene <0.71 ug/L 04/06/21 03:02 179601-23-11.0 0.71 1 o-Xylene <0.34 ug/L 04/06/21 03:02 95-47-60.50 0.34 1 Surrogates 1,2-Dichloroethane-d4 (S)101 %04/06/21 03:02 17060-07-070-130 1 4-Bromofluorobenzene (S)96 %04/06/21 03:02 460-00-470-130 1 Toluene-d8 (S)102 %04/06/21 03:02 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:WSW-6 Lab ID:92531085009 Collected:04/02/21 15:10 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: EPA 504.1 Preparation Method: EPA 504.1 Pace Analytical Services - Charlotte 504 GCS EDB and DBCP 1,2-Dibromoethane (EDB)<0.013 ug/L 04/06/21 20:44 106-93-404/06/21 09:430.020 0.013 1 Surrogates 1-Chloro-2-bromopropane (S)97 %04/06/21 20:44 301-79-5604/06/21 09:4370-130 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <36.4 ug/L 04/06/21 03:20 75-85-410036.4 1 tert-Amylmethyl ether <2.7 ug/L 04/06/21 03:20 994-05-810.0 2.7 1 Benzene <0.34 ug/L 04/06/21 03:20 71-43-20.50 0.34 1 Bromobenzene <0.29 ug/L 04/06/21 03:20 108-86-10.50 0.29 1 Bromochloromethane <0.47 ug/L 04/06/21 03:20 74-97-50.50 0.47 1 Bromodichloromethane 1.0 ug/L 04/06/21 03:20 75-27-40.50 0.31 1 Bromoform <0.34 ug/L 04/06/21 03:20 75-25-20.50 0.34 1 Bromomethane <1.7 ug/L 04/06/21 03:20 74-83-95.0 1.7 1 tert-Butyl Alcohol <26.8 ug/L 04/06/21 03:20 75-65-050.0 26.8 1 n-Butylbenzene <0.49 ug/L 04/06/21 03:20 104-51-80.50 0.49 1 sec-Butylbenzene <0.40 ug/L 04/06/21 03:20 135-98-80.50 0.40 1 tert-Butylbenzene <0.32 ug/L 04/06/21 03:20 98-06-60.50 0.32 1 tert-Butyl Formate <29.4 ug/L 04/06/21 03:20 762-75-450.0 29.4 1 Carbon tetrachloride <0.33 ug/L 04/06/21 03:20 56-23-50.50 0.33 1 Chlorobenzene <0.28 ug/L 04/06/21 03:20 108-90-70.50 0.28 1 Chloroethane <0.65 ug/L 04/06/21 03:20 75-00-31.0 0.65 1 Chloroform 5.4 ug/L 04/06/21 03:20 67-66-30.50 0.35 1 Chloromethane <0.54 ug/L 04/06/21 03:20 74-87-31.0 0.54 1 2-Chlorotoluene <0.32 ug/L 04/06/21 03:20 95-49-80.50 0.32 1 4-Chlorotoluene <0.32 ug/L 04/06/21 03:20 106-43-40.50 0.32 1 1,2-Dibromo-3-chloropropane <0.34 ug/L 04/06/21 03:20 96-12-81.0 0.34 1 Dibromochloromethane 0.42J ug/L 04/06/21 03:20 124-48-10.50 0.36 1 1,2-Dibromoethane (EDB)<0.27 ug/L 04/06/21 03:20 106-93-40.50 0.27 1 Dibromomethane <0.39 ug/L 04/06/21 03:20 74-95-30.50 0.39 1 1,2-Dichlorobenzene <0.34 ug/L 04/06/21 03:20 95-50-10.50 0.34 1 1,3-Dichlorobenzene <0.34 ug/L 04/06/21 03:20 541-73-10.50 0.34 1 1,4-Dichlorobenzene <0.33 ug/L 04/06/21 03:20 106-46-70.50 0.33 1 Dichlorodifluoromethane <0.35 ug/L 04/06/21 03:20 75-71-80.50 0.35 1 1,1-Dichloroethane <0.37 ug/L 04/06/21 03:20 75-34-30.50 0.37 1 1,2-Dichloroethane <0.32 ug/L 04/06/21 03:20 107-06-20.50 0.32 1 1,1-Dichloroethene <0.35 ug/L 04/06/21 03:20 75-35-40.50 0.35 1 cis-1,2-Dichloroethene <0.38 ug/L 04/06/21 03:20 156-59-20.50 0.38 1 trans-1,2-Dichloroethene <0.40 ug/L 04/06/21 03:20 156-60-50.50 0.40 1 1,2-Dichloropropane <0.36 ug/L 04/06/21 03:20 78-87-50.50 0.36 1 1,3-Dichloropropane <0.28 ug/L 04/06/21 03:20 142-28-90.50 0.28 1 2,2-Dichloropropane <0.39 ug/L 04/06/21 03:20 594-20-70.50 0.39 1 1,1-Dichloropropene <0.43 ug/L 04/06/21 03:20 563-58-60.50 0.43 1 cis-1,3-Dichloropropene <0.36 ug/L 04/06/21 03:20 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.36 ug/L 04/06/21 03:20 10061-02-60.50 0.36 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:WSW-6 Lab ID:92531085009 Collected:04/02/21 15:10 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Diisopropyl ether <0.31 ug/L 04/06/21 03:20 108-20-30.50 0.31 1 Ethanol <72.2 ug/L 04/06/21 03:20 64-17-520072.2 1 Ethylbenzene <0.30 ug/L 04/06/21 03:20 100-41-40.50 0.30 1 Ethyl-tert-butyl ether <3.2 ug/L 04/06/21 03:20 637-92-310.0 3.2 1 Hexachloro-1,3-butadiene <1.5 ug/L 04/06/21 03:20 87-68-32.0 1.5 1 Isopropylbenzene (Cumene)<0.33 ug/L 04/06/21 03:20 98-82-80.50 0.33 1 Methylene Chloride <2.0 ug/L 04/06/21 03:20 75-09-22.0 2.0 1 Methyl-tert-butyl ether <0.42 ug/L 04/06/21 03:20 1634-04-40.50 0.42 1 Naphthalene <0.64 ug/L 04/06/21 03:20 91-20-32.0 0.64 1 n-Propylbenzene <0.34 ug/L 04/06/21 03:20 103-65-10.50 0.34 1 Styrene <0.29 ug/L 04/06/21 03:20 100-42-50.50 0.29 1 1,1,1,2-Tetrachloroethane <0.31 ug/L 04/06/21 03:20 630-20-60.50 0.31 1 1,1,2,2-Tetrachloroethane <0.22 ug/L 04/06/21 03:20 79-34-50.50 0.22 1 Tetrachloroethene <0.29 ug/L 04/06/21 03:20 127-18-40.50 0.29 1 Toluene 2.5 ug/L 04/06/21 03:20 108-88-30.50 0.48 1 1,2,3-Trichlorobenzene <0.81 ug/L 04/06/21 03:20 87-61-62.0 0.81 1 1,2,4-Trichlorobenzene <0.64 ug/L 04/06/21 03:20 120-82-12.0 0.64 1 1,1,1-Trichloroethane <0.33 ug/L 04/06/21 03:20 71-55-60.50 0.33 1 1,1,2-Trichloroethane <0.32 ug/L 04/06/21 03:20 79-00-50.50 0.32 1 Trichloroethene <0.38 ug/L 04/06/21 03:20 79-01-60.50 0.38 1 Trichlorofluoromethane <0.30 ug/L 04/06/21 03:20 75-69-41.0 0.30 1 1,2,3-Trichloropropane <0.26 ug/L 04/06/21 03:20 96-18-40.50 0.26 1 1,2,4-Trimethylbenzene <0.50 ug/L 04/06/21 03:20 95-63-60.50 0.50 1 1,3,5-Trimethylbenzene <0.33 ug/L 04/06/21 03:20 108-67-80.50 0.33 1 Vinyl chloride <0.39 ug/L 04/06/21 03:20 75-01-41.0 0.39 1 Xylene (Total)<0.34 ug/L 04/06/21 03:20 1330-20-71.0 0.34 1 m&p-Xylene <0.71 ug/L 04/06/21 03:20 179601-23-11.0 0.71 1 o-Xylene <0.34 ug/L 04/06/21 03:20 95-47-60.50 0.34 1 Surrogates 1,2-Dichloroethane-d4 (S)99 %04/06/21 03:20 17060-07-070-130 1 4-Bromofluorobenzene (S)98 %04/06/21 03:20 460-00-470-130 1 Toluene-d8 (S)107 %04/06/21 03:20 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:WSW-7 Lab ID:92531085010 Collected:04/02/21 15:40 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: EPA 504.1 Preparation Method: EPA 504.1 Pace Analytical Services - Charlotte 504 GCS EDB and DBCP 1,2-Dibromoethane (EDB)<0.012 ug/L 04/06/21 21:00 106-93-404/06/21 09:430.019 0.012 1 Surrogates 1-Chloro-2-bromopropane (S)101 %04/06/21 21:00 301-79-5604/06/21 09:4370-130 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <36.4 ug/L 04/06/21 03:38 75-85-410036.4 1 tert-Amylmethyl ether <2.7 ug/L 04/06/21 03:38 994-05-810.0 2.7 1 Benzene <0.34 ug/L 04/06/21 03:38 71-43-20.50 0.34 1 Bromobenzene <0.29 ug/L 04/06/21 03:38 108-86-10.50 0.29 1 Bromochloromethane <0.47 ug/L 04/06/21 03:38 74-97-50.50 0.47 1 Bromodichloromethane <0.31 ug/L 04/06/21 03:38 75-27-40.50 0.31 1 Bromoform <0.34 ug/L 04/06/21 03:38 75-25-20.50 0.34 1 Bromomethane <1.7 ug/L 04/06/21 03:38 74-83-95.0 1.7 1 tert-Butyl Alcohol <26.8 ug/L 04/06/21 03:38 75-65-050.0 26.8 1 n-Butylbenzene <0.49 ug/L 04/06/21 03:38 104-51-80.50 0.49 1 sec-Butylbenzene <0.40 ug/L 04/06/21 03:38 135-98-80.50 0.40 1 tert-Butylbenzene <0.32 ug/L 04/06/21 03:38 98-06-60.50 0.32 1 tert-Butyl Formate <29.4 ug/L 04/06/21 03:38 762-75-450.0 29.4 1 Carbon tetrachloride <0.33 ug/L 04/06/21 03:38 56-23-50.50 0.33 1 Chlorobenzene <0.28 ug/L 04/06/21 03:38 108-90-70.50 0.28 1 Chloroethane <0.65 ug/L 04/06/21 03:38 75-00-31.0 0.65 1 Chloroform <0.35 ug/L 04/06/21 03:38 67-66-30.50 0.35 1 Chloromethane <0.54 ug/L 04/06/21 03:38 74-87-31.0 0.54 1 2-Chlorotoluene <0.32 ug/L 04/06/21 03:38 95-49-80.50 0.32 1 4-Chlorotoluene <0.32 ug/L 04/06/21 03:38 106-43-40.50 0.32 1 1,2-Dibromo-3-chloropropane <0.34 ug/L 04/06/21 03:38 96-12-81.0 0.34 1 Dibromochloromethane <0.36 ug/L 04/06/21 03:38 124-48-10.50 0.36 1 1,2-Dibromoethane (EDB)<0.27 ug/L 04/06/21 03:38 106-93-40.50 0.27 1 Dibromomethane <0.39 ug/L 04/06/21 03:38 74-95-30.50 0.39 1 1,2-Dichlorobenzene <0.34 ug/L 04/06/21 03:38 95-50-10.50 0.34 1 1,3-Dichlorobenzene <0.34 ug/L 04/06/21 03:38 541-73-10.50 0.34 1 1,4-Dichlorobenzene <0.33 ug/L 04/06/21 03:38 106-46-70.50 0.33 1 Dichlorodifluoromethane <0.35 ug/L 04/06/21 03:38 75-71-80.50 0.35 1 1,1-Dichloroethane <0.37 ug/L 04/06/21 03:38 75-34-30.50 0.37 1 1,2-Dichloroethane <0.32 ug/L 04/06/21 03:38 107-06-20.50 0.32 1 1,1-Dichloroethene <0.35 ug/L 04/06/21 03:38 75-35-40.50 0.35 1 cis-1,2-Dichloroethene <0.38 ug/L 04/06/21 03:38 156-59-20.50 0.38 1 trans-1,2-Dichloroethene <0.40 ug/L 04/06/21 03:38 156-60-50.50 0.40 1 1,2-Dichloropropane <0.36 ug/L 04/06/21 03:38 78-87-50.50 0.36 1 1,3-Dichloropropane <0.28 ug/L 04/06/21 03:38 142-28-90.50 0.28 1 2,2-Dichloropropane <0.39 ug/L 04/06/21 03:38 594-20-70.50 0.39 1 1,1-Dichloropropene <0.43 ug/L 04/06/21 03:38 563-58-60.50 0.43 1 cis-1,3-Dichloropropene <0.36 ug/L 04/06/21 03:38 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.36 ug/L 04/06/21 03:38 10061-02-60.50 0.36 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:WSW-7 Lab ID:92531085010 Collected:04/02/21 15:40 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Diisopropyl ether <0.31 ug/L 04/06/21 03:38 108-20-30.50 0.31 1 Ethanol <72.2 ug/L 04/06/21 03:38 64-17-520072.2 1 Ethylbenzene <0.30 ug/L 04/06/21 03:38 100-41-40.50 0.30 1 Ethyl-tert-butyl ether <3.2 ug/L 04/06/21 03:38 637-92-310.0 3.2 1 Hexachloro-1,3-butadiene <1.5 ug/L 04/06/21 03:38 87-68-32.0 1.5 1 Isopropylbenzene (Cumene)<0.33 ug/L 04/06/21 03:38 98-82-80.50 0.33 1 Methylene Chloride <2.0 ug/L 04/06/21 03:38 75-09-22.0 2.0 1 Methyl-tert-butyl ether <0.42 ug/L 04/06/21 03:38 1634-04-40.50 0.42 1 Naphthalene <0.64 ug/L 04/06/21 03:38 91-20-32.0 0.64 1 n-Propylbenzene <0.34 ug/L 04/06/21 03:38 103-65-10.50 0.34 1 Styrene <0.29 ug/L 04/06/21 03:38 100-42-50.50 0.29 1 1,1,1,2-Tetrachloroethane <0.31 ug/L 04/06/21 03:38 630-20-60.50 0.31 1 1,1,2,2-Tetrachloroethane <0.22 ug/L 04/06/21 03:38 79-34-50.50 0.22 1 Tetrachloroethene <0.29 ug/L 04/06/21 03:38 127-18-40.50 0.29 1 Toluene <0.48 ug/L 04/06/21 03:38 108-88-30.50 0.48 1 1,2,3-Trichlorobenzene <0.81 ug/L 04/06/21 03:38 87-61-62.0 0.81 1 1,2,4-Trichlorobenzene <0.64 ug/L 04/06/21 03:38 120-82-12.0 0.64 1 1,1,1-Trichloroethane <0.33 ug/L 04/06/21 03:38 71-55-60.50 0.33 1 1,1,2-Trichloroethane <0.32 ug/L 04/06/21 03:38 79-00-50.50 0.32 1 Trichloroethene <0.38 ug/L 04/06/21 03:38 79-01-60.50 0.38 1 Trichlorofluoromethane <0.30 ug/L 04/06/21 03:38 75-69-41.0 0.30 1 1,2,3-Trichloropropane <0.26 ug/L 04/06/21 03:38 96-18-40.50 0.26 1 1,2,4-Trimethylbenzene <0.50 ug/L 04/06/21 03:38 95-63-60.50 0.50 1 1,3,5-Trimethylbenzene <0.33 ug/L 04/06/21 03:38 108-67-80.50 0.33 1 Vinyl chloride <0.39 ug/L 04/06/21 03:38 75-01-41.0 0.39 1 Xylene (Total)<0.34 ug/L 04/06/21 03:38 1330-20-71.0 0.34 1 m&p-Xylene <0.71 ug/L 04/06/21 03:38 179601-23-11.0 0.71 1 o-Xylene <0.34 ug/L 04/06/21 03:38 95-47-60.50 0.34 1 Surrogates 1,2-Dichloroethane-d4 (S)101 %04/06/21 03:38 17060-07-070-130 1 4-Bromofluorobenzene (S)96 %04/06/21 03:38 460-00-470-130 1 Toluene-d8 (S)101 %04/06/21 03:38 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 24 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:FB-1 Lab ID:92531085011 Collected:04/02/21 14:30 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: EPA 504.1 Preparation Method: EPA 504.1 Pace Analytical Services - Charlotte 504 GCS EDB and DBCP 1,2-Dibromoethane (EDB)<0.012 ug/L 04/06/21 21:15 106-93-404/06/21 09:430.019 0.012 1 Surrogates 1-Chloro-2-bromopropane (S)101 %04/06/21 21:15 301-79-5604/06/21 09:4370-130 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <36.4 ug/L 04/05/21 23:07 75-85-410036.4 1 tert-Amylmethyl ether <2.7 ug/L 04/05/21 23:07 994-05-810.0 2.7 1 Benzene <0.34 ug/L 04/05/21 23:07 71-43-20.50 0.34 1 Bromobenzene <0.29 ug/L 04/05/21 23:07 108-86-10.50 0.29 1 Bromochloromethane <0.47 ug/L 04/05/21 23:07 74-97-50.50 0.47 1 Bromodichloromethane <0.31 ug/L 04/05/21 23:07 75-27-40.50 0.31 1 Bromoform <0.34 ug/L 04/05/21 23:07 75-25-20.50 0.34 1 Bromomethane <1.7 ug/L 04/05/21 23:07 74-83-95.0 1.7 1 tert-Butyl Alcohol <26.8 ug/L 04/05/21 23:07 75-65-050.0 26.8 1 n-Butylbenzene <0.49 ug/L 04/05/21 23:07 104-51-80.50 0.49 1 sec-Butylbenzene <0.40 ug/L 04/05/21 23:07 135-98-80.50 0.40 1 tert-Butylbenzene <0.32 ug/L 04/05/21 23:07 98-06-60.50 0.32 1 tert-Butyl Formate <29.4 ug/L 04/05/21 23:07 762-75-450.0 29.4 1 Carbon tetrachloride <0.33 ug/L 04/05/21 23:07 56-23-50.50 0.33 1 Chlorobenzene <0.28 ug/L 04/05/21 23:07 108-90-70.50 0.28 1 Chloroethane <0.65 ug/L 04/05/21 23:07 75-00-31.0 0.65 1 Chloroform <0.35 ug/L 04/05/21 23:07 67-66-30.50 0.35 1 Chloromethane <0.54 ug/L 04/05/21 23:07 74-87-31.0 0.54 1 2-Chlorotoluene <0.32 ug/L 04/05/21 23:07 95-49-80.50 0.32 1 4-Chlorotoluene <0.32 ug/L 04/05/21 23:07 106-43-40.50 0.32 1 1,2-Dibromo-3-chloropropane <0.34 ug/L 04/05/21 23:07 96-12-81.0 0.34 1 Dibromochloromethane <0.36 ug/L 04/05/21 23:07 124-48-10.50 0.36 1 1,2-Dibromoethane (EDB)<0.27 ug/L 04/05/21 23:07 106-93-40.50 0.27 1 Dibromomethane <0.39 ug/L 04/05/21 23:07 74-95-30.50 0.39 1 1,2-Dichlorobenzene <0.34 ug/L 04/05/21 23:07 95-50-10.50 0.34 1 1,3-Dichlorobenzene <0.34 ug/L 04/05/21 23:07 541-73-10.50 0.34 1 1,4-Dichlorobenzene <0.33 ug/L 04/05/21 23:07 106-46-70.50 0.33 1 Dichlorodifluoromethane <0.35 ug/L 04/05/21 23:07 75-71-80.50 0.35 1 1,1-Dichloroethane <0.37 ug/L 04/05/21 23:07 75-34-30.50 0.37 1 1,2-Dichloroethane <0.32 ug/L 04/05/21 23:07 107-06-20.50 0.32 1 1,1-Dichloroethene <0.35 ug/L 04/05/21 23:07 75-35-40.50 0.35 1 cis-1,2-Dichloroethene <0.38 ug/L 04/05/21 23:07 156-59-20.50 0.38 1 trans-1,2-Dichloroethene <0.40 ug/L 04/05/21 23:07 156-60-50.50 0.40 1 1,2-Dichloropropane <0.36 ug/L 04/05/21 23:07 78-87-50.50 0.36 1 1,3-Dichloropropane <0.28 ug/L 04/05/21 23:07 142-28-90.50 0.28 1 2,2-Dichloropropane <0.39 ug/L 04/05/21 23:07 594-20-70.50 0.39 1 1,1-Dichloropropene <0.43 ug/L 04/05/21 23:07 563-58-60.50 0.43 1 cis-1,3-Dichloropropene <0.36 ug/L 04/05/21 23:07 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene <0.36 ug/L 04/05/21 23:07 10061-02-60.50 0.36 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 25 of 47 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92531085 WILLIAMS GROCERY Sample:FB-1 Lab ID:92531085011 Collected:04/02/21 14:30 Received:04/02/21 17:34 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Diisopropyl ether <0.31 ug/L 04/05/21 23:07 108-20-30.50 0.31 1 Ethanol <72.2 ug/L 04/05/21 23:07 64-17-520072.2 1 Ethylbenzene <0.30 ug/L 04/05/21 23:07 100-41-40.50 0.30 1 Ethyl-tert-butyl ether <3.2 ug/L 04/05/21 23:07 637-92-310.0 3.2 1 Hexachloro-1,3-butadiene <1.5 ug/L 04/05/21 23:07 87-68-32.0 1.5 1 Isopropylbenzene (Cumene)<0.33 ug/L 04/05/21 23:07 98-82-80.50 0.33 1 Methylene Chloride <2.0 ug/L 04/05/21 23:07 75-09-22.0 2.0 1 Methyl-tert-butyl ether <0.42 ug/L 04/05/21 23:07 1634-04-40.50 0.42 1 Naphthalene <0.64 ug/L 04/05/21 23:07 91-20-32.0 0.64 1 n-Propylbenzene <0.34 ug/L 04/05/21 23:07 103-65-10.50 0.34 1 Styrene <0.29 ug/L 04/05/21 23:07 100-42-50.50 0.29 1 1,1,1,2-Tetrachloroethane <0.31 ug/L 04/05/21 23:07 630-20-60.50 0.31 1 1,1,2,2-Tetrachloroethane <0.22 ug/L 04/05/21 23:07 79-34-50.50 0.22 1 Tetrachloroethene <0.29 ug/L 04/05/21 23:07 127-18-40.50 0.29 1 Toluene <0.48 ug/L 04/05/21 23:07 108-88-30.50 0.48 1 1,2,3-Trichlorobenzene <0.81 ug/L 04/05/21 23:07 87-61-62.0 0.81 1 1,2,4-Trichlorobenzene <0.64 ug/L 04/05/21 23:07 120-82-12.0 0.64 1 1,1,1-Trichloroethane <0.33 ug/L 04/05/21 23:07 71-55-60.50 0.33 1 1,1,2-Trichloroethane <0.32 ug/L 04/05/21 23:07 79-00-50.50 0.32 1 Trichloroethene <0.38 ug/L 04/05/21 23:07 79-01-60.50 0.38 1 Trichlorofluoromethane <0.30 ug/L 04/05/21 23:07 75-69-41.0 0.30 1 1,2,3-Trichloropropane <0.26 ug/L 04/05/21 23:07 96-18-40.50 0.26 1 1,2,4-Trimethylbenzene <0.50 ug/L 04/05/21 23:07 95-63-60.50 0.50 1 1,3,5-Trimethylbenzene <0.33 ug/L 04/05/21 23:07 108-67-80.50 0.33 1 Vinyl chloride <0.39 ug/L 04/05/21 23:07 75-01-41.0 0.39 1 Xylene (Total)<0.34 ug/L 04/05/21 23:07 1330-20-71.0 0.34 1 m&p-Xylene <0.71 ug/L 04/05/21 23:07 179601-23-11.0 0.71 1 o-Xylene <0.34 ug/L 04/05/21 23:07 95-47-60.50 0.34 1 Surrogates 1,2-Dichloroethane-d4 (S)98 %04/05/21 23:07 17060-07-070-130 1 4-Bromofluorobenzene (S)96 %04/05/21 23:07 460-00-470-130 1 Toluene-d8 (S)101 %04/05/21 23:07 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 26 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 611410 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92531085003, 92531085004, 92531085006, 92531085008, 92531085009, 92531085010, 92531085011 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3218870 Associated Lab Samples:92531085003, 92531085004, 92531085006, 92531085008, 92531085009, 92531085010, 92531085011 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.31 0.50 04/05/21 22:310.31 1,1,1-Trichloroethane ug/L <0.33 0.50 04/05/21 22:310.33 1,1,2,2-Tetrachloroethane ug/L <0.22 0.50 04/05/21 22:310.22 1,1,2-Trichloroethane ug/L <0.32 0.50 04/05/21 22:310.32 1,1-Dichloroethane ug/L <0.37 0.50 04/05/21 22:310.37 1,1-Dichloroethene ug/L <0.35 0.50 04/05/21 22:310.35 1,1-Dichloropropene ug/L <0.43 0.50 04/05/21 22:310.43 1,2,3-Trichlorobenzene ug/L <0.81 2.0 04/05/21 22:310.81 1,2,3-Trichloropropane ug/L <0.26 0.50 04/05/21 22:310.26 1,2,4-Trichlorobenzene ug/L <0.64 2.0 04/05/21 22:310.64 1,2,4-Trimethylbenzene ug/L <0.50 0.50 04/05/21 22:310.50 1,2-Dibromo-3-chloropropane ug/L <0.34 1.0 04/05/21 22:310.34 1,2-Dibromoethane (EDB)ug/L <0.27 0.50 04/05/21 22:310.27 1,2-Dichlorobenzene ug/L <0.34 0.50 04/05/21 22:310.34 1,2-Dichloroethane ug/L <0.32 0.50 04/05/21 22:310.32 1,2-Dichloropropane ug/L <0.36 0.50 04/05/21 22:310.36 1,3,5-Trimethylbenzene ug/L <0.33 0.50 04/05/21 22:310.33 1,3-Dichlorobenzene ug/L <0.34 0.50 04/05/21 22:310.34 1,3-Dichloropropane ug/L <0.28 0.50 04/05/21 22:310.28 1,4-Dichlorobenzene ug/L <0.33 0.50 04/05/21 22:310.33 2,2-Dichloropropane ug/L <0.39 0.50 04/05/21 22:310.39 2-Chlorotoluene ug/L <0.32 0.50 04/05/21 22:310.32 4-Chlorotoluene ug/L <0.32 0.50 04/05/21 22:310.32 Benzene ug/L <0.34 0.50 04/05/21 22:310.34 Bromobenzene ug/L <0.29 0.50 04/05/21 22:310.29 Bromochloromethane ug/L <0.47 0.50 04/05/21 22:310.47 Bromodichloromethane ug/L <0.31 0.50 04/05/21 22:310.31 Bromoform ug/L <0.34 0.50 04/05/21 22:310.34 Bromomethane ug/L <1.7 5.0 04/05/21 22:311.7 Carbon tetrachloride ug/L <0.33 0.50 04/05/21 22:310.33 Chlorobenzene ug/L <0.28 0.50 04/05/21 22:310.28 Chloroethane ug/L <0.65 1.0 04/05/21 22:310.65 Chloroform ug/L <0.35 0.50 04/05/21 22:310.35 Chloromethane ug/L <0.54 1.0 04/05/21 22:310.54 cis-1,2-Dichloroethene ug/L <0.38 0.50 04/05/21 22:310.38 cis-1,3-Dichloropropene ug/L <0.36 0.50 04/05/21 22:310.36 Dibromochloromethane ug/L <0.36 0.50 04/05/21 22:310.36 Dibromomethane ug/L <0.39 0.50 04/05/21 22:310.39 Dichlorodifluoromethane ug/L <0.35 0.50 04/05/21 22:310.35 Diisopropyl ether ug/L <0.31 0.50 04/05/21 22:310.31 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 27 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3218870 Associated Lab Samples:92531085003, 92531085004, 92531085006, 92531085008, 92531085009, 92531085010, 92531085011 Matrix:Water AnalyzedMDL Ethanol ug/L <72.2 200 04/05/21 22:3172.2 Ethyl-tert-butyl ether ug/L <3.2 10.0 04/05/21 22:313.2 Ethylbenzene ug/L <0.30 0.50 04/05/21 22:310.30 Hexachloro-1,3-butadiene ug/L <1.5 2.0 04/05/21 22:311.5 Isopropylbenzene (Cumene)ug/L <0.33 0.50 04/05/21 22:310.33 m&p-Xylene ug/L <0.71 1.0 04/05/21 22:310.71 Methyl-tert-butyl ether ug/L <0.42 0.50 04/05/21 22:310.42 Methylene Chloride ug/L <2.0 2.0 04/05/21 22:312.0 n-Butylbenzene ug/L <0.49 0.50 04/05/21 22:310.49 n-Propylbenzene ug/L <0.34 0.50 04/05/21 22:310.34 Naphthalene ug/L <0.64 2.0 04/05/21 22:310.64 o-Xylene ug/L <0.34 0.50 04/05/21 22:310.34 sec-Butylbenzene ug/L <0.40 0.50 04/05/21 22:310.40 Styrene ug/L <0.29 0.50 04/05/21 22:310.29 tert-Amyl Alcohol ug/L <36.4 100 04/05/21 22:3136.4 tert-Amylmethyl ether ug/L <2.7 10.0 04/05/21 22:312.7 tert-Butyl Alcohol ug/L <26.8 50.0 04/05/21 22:3126.8 tert-Butyl Formate ug/L <29.4 50.0 04/05/21 22:3129.4 tert-Butylbenzene ug/L <0.32 0.50 04/05/21 22:310.32 Tetrachloroethene ug/L <0.29 0.50 04/05/21 22:310.29 Toluene ug/L <0.48 0.50 04/05/21 22:310.48 trans-1,2-Dichloroethene ug/L <0.40 0.50 04/05/21 22:310.40 trans-1,3-Dichloropropene ug/L <0.36 0.50 04/05/21 22:310.36 Trichloroethene ug/L <0.38 0.50 04/05/21 22:310.38 Trichlorofluoromethane ug/L <0.30 1.0 04/05/21 22:310.30 Vinyl chloride ug/L <0.39 1.0 04/05/21 22:310.39 Xylene (Total)ug/L <0.34 1.0 04/05/21 22:310.34 1,2-Dichloroethane-d4 (S)%100 70-130 04/05/21 22:31 4-Bromofluorobenzene (S)%97 70-130 04/05/21 22:31 Toluene-d8 (S)%105 70-130 04/05/21 22:31 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3218871LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 55.950 112 60-140 1,1,1-Trichloroethane ug/L 55.150 110 60-140 1,1,2,2-Tetrachloroethane ug/L 56.150 112 60-140 1,1,2-Trichloroethane ug/L 57.050 114 60-140 1,1-Dichloroethane ug/L 55.450 111 60-140 1,1-Dichloroethene ug/L 57.050 114 60-140 1,1-Dichloropropene ug/L 54.350 109 60-140 1,2,3-Trichlorobenzene ug/L 52.250 104 60-140 1,2,3-Trichloropropane ug/L 54.350 109 60-140 1,2,4-Trichlorobenzene ug/L 51.550 103 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 28 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3218871LABORATORY CONTROL SAMPLE: LCSSpike 1,2,4-Trimethylbenzene ug/L 51.850 104 60-140 1,2-Dibromo-3-chloropropane ug/L 57.850 116 60-140 1,2-Dibromoethane (EDB)ug/L 54.950 110 60-140 1,2-Dichlorobenzene ug/L 51.450 103 60-140 1,2-Dichloroethane ug/L 50.150 100 60-140 1,2-Dichloropropane ug/L 57.350 115 60-140 1,3,5-Trimethylbenzene ug/L 52.650 105 60-140 1,3-Dichlorobenzene ug/L 52.850 106 60-140 1,3-Dichloropropane ug/L 54.850 110 60-140 1,4-Dichlorobenzene ug/L 53.450 107 60-140 2,2-Dichloropropane ug/L 55.850 112 60-140 2-Chlorotoluene ug/L 52.750 105 60-140 4-Chlorotoluene ug/L 51.250 102 60-140 Benzene ug/L 56.050 112 60-140 Bromobenzene ug/L 51.750 103 60-140 Bromochloromethane ug/L 56.650 113 60-140 Bromodichloromethane ug/L 56.950 114 60-140 Bromoform ug/L 58.550 117 60-140 Bromomethane ug/L 52.250 104 60-140 Carbon tetrachloride ug/L 57.450 115 60-140 Chlorobenzene ug/L 54.350 109 60-140 Chloroethane ug/L 44.450 89 60-140 Chloroform ug/L 48.850 98 60-140 Chloromethane ug/L 51.650 103 60-140 cis-1,2-Dichloroethene ug/L 55.650 111 60-140 cis-1,3-Dichloropropene ug/L 58.150 116 60-140 Dibromochloromethane ug/L 58.850 118 60-140 Dibromomethane ug/L 54.850 110 60-140 Dichlorodifluoromethane ug/L 46.550 93 60-140 Diisopropyl ether ug/L 51.450 103 60-140 Ethanol ug/L 20302000 101 60-140 Ethyl-tert-butyl ether ug/L 106100 106 60-140 Ethylbenzene ug/L 53.950 108 60-140 Hexachloro-1,3-butadiene ug/L 48.950 98 60-140 Isopropylbenzene (Cumene)ug/L 57.350 115 60-140 m&p-Xylene ug/L 110100 110 60-140 Methyl-tert-butyl ether ug/L 51.750 103 60-140 Methylene Chloride ug/L 52.350 105 60-140 n-Butylbenzene ug/L 51.250 102 60-140 n-Propylbenzene ug/L 50.950 102 60-140 Naphthalene ug/L 51.950 104 60-140 o-Xylene ug/L 54.850 110 60-140 sec-Butylbenzene ug/L 51.450 103 60-140 Styrene ug/L 57.650 115 60-140 tert-Amyl Alcohol ug/L 10401000 104 60-140 tert-Amylmethyl ether ug/L 106100 106 60-140 tert-Butyl Alcohol ug/L 488500 98 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 29 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3218871LABORATORY CONTROL SAMPLE: LCSSpike tert-Butyl Formate ug/L 441400 110 60-140 tert-Butylbenzene ug/L 44.350 89 60-140 Tetrachloroethene ug/L 54.450 109 60-140 Toluene ug/L 54.750 109 60-140 trans-1,2-Dichloroethene ug/L 55.950 112 60-140 trans-1,3-Dichloropropene ug/L 58.950 118 60-140 Trichloroethene ug/L 54.750 109 60-140 Trichlorofluoromethane ug/L 44.650 89 60-140 Vinyl chloride ug/L 51.650 103 60-140 Xylene (Total)ug/L 165150 110 60-140 1,2-Dichloroethane-d4 (S)%95 70-130 4-Bromofluorobenzene (S)%105 70-130 Toluene-d8 (S)%103 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 3218872MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92530999003 3218873 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 400 109 60-140113 3 30400ND435451 1,1,1-Trichloroethane ug/L 400 114 60-140115 0 30400ND457458 1,1,2,2-Tetrachloroethane ug/L 400 113 60-140114 1 30400ND451455 1,1,2-Trichloroethane ug/L 400 103 60-140109 6 30400ND412438 1,1-Dichloroethane ug/L 400 111 60-140114 2 30400ND446455 1,1-Dichloroethene ug/L 400 115 60-140121 5 30400ND460484 1,1-Dichloropropene ug/L 400 113 60-140114 1 30400ND451456 1,2,3-Trichlorobenzene ug/L 400 96 60-140109 13 30400ND382434 1,2,3-Trichloropropane ug/L 400 116 60-140118 2 30400ND463474 1,2,4-Trichlorobenzene ug/L 400 96 60-140108 11 30400ND385431 1,2,4-Trimethylbenzene ug/L E,M14002260-140186 16 30400370037904440 1,2-Dibromo-3- chloropropane ug/L 400 111 60-140118 7 30400ND442473 1,2-Dibromoethane (EDB)ug/L 400 106 60-140110 3 30400ND425439 1,2-Dichlorobenzene ug/L 400 103 60-140109 6 30400ND412437 1,2-Dichloroethane ug/L 400 97 60-14099 2 30400ND389395 1,2-Dichloropropane ug/L 400 113 60-140114 1 30400ND452455 1,3,5-Trimethylbenzene ug/L M140036860-140429 15 30400ND14701720 1,3-Dichlorobenzene ug/L 400 100 60-140108 7 30400ND401432 1,3-Dichloropropane ug/L 400 107 60-140110 2 30400ND429439 1,4-Dichlorobenzene ug/L 400 102 60-140109 7 30400ND408436 2,2-Dichloropropane ug/L 400 94 60-14094 0 30400ND376376 2-Chlorotoluene ug/L M140012960-140143 10 30400ND516571 4-Chlorotoluene ug/L 400 93 60-14099 6 30400ND374397 Benzene ug/L 400 108 60-140111 3 30400ND434445 Bromobenzene ug/L 400 102 60-140107 5 30400ND409429 Bromochloromethane ug/L 400 108 60-140110 2 30400ND433441 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 30 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3218872MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92530999003 3218873 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromodichloromethane ug/L 400 106 60-140114 7 30400ND424454 Bromoform ug/L 400 109 60-140110 2 30400ND434441 Bromomethane ug/L 400 95 60-140102 7 30400ND380408 Carbon tetrachloride ug/L 400 110 60-140119 8 30400ND442477 Chlorobenzene ug/L 400 106 60-140111 5 30400ND424444 Chloroethane ug/L 400 113 60-140114 1 30400ND451454 Chloroform ug/L 400 100 60-140104 4 30400ND400415 Chloromethane ug/L 400 96 60-140100 5 30400ND384402 cis-1,2-Dichloroethene ug/L 400 112 60-140114 1 30400ND449455 cis-1,3-Dichloropropene ug/L 400 106 60-140110 4 30400ND423441 Dibromochloromethane ug/L 400 110 60-140114 4 30400ND439457 Dibromomethane ug/L 400 104 60-140109 4 30400ND418434 Dichlorodifluoromethane ug/L 400 76 60-14079 4 30400ND304316 Diisopropyl ether ug/L 400 102 60-140105 3 30400ND407421 Ethanol ug/L 16000 99 60-140102 3 3016000ND1580016300 Ethyl-tert-butyl ether ug/L 800 104 60-140106 3 30800ND829851 Ethylbenzene ug/L M14008760-140155 11 30400199023402610 Hexachloro-1,3-butadiene ug/L 400 92 60-140105 13 30400ND368421 Isopropylbenzene (Cumene)ug/L 400 107 60-140128 10 30400360790870 m&p-Xylene ug/L 800 101 60-140131 9 30800163024402680 Methyl-tert-butyl ether ug/L 400 102 60-140102 0 30400ND408409 Methylene Chloride ug/L 400 106 60-140107 1 30400ND424428 n-Butylbenzene ug/L M140015260-140158 4 30400ND606630 n-Propylbenzene ug/L M140032660-140382 16 30400ND13001530 Naphthalene ug/L 400 88 60-140130 15 3040074511001270 o-Xylene ug/L 400 106 60-140123 8 30400444868938 sec-Butylbenzene ug/L 400 114 60-140123 8 30400ND455492 Styrene ug/L 400 111 60-140117 5 3040050.1 492 518 tert-Amyl Alcohol ug/L 8000 100 60-14099 1 308000ND79907950 tert-Amylmethyl ether ug/L 800 100 60-140102 3 30800ND799819 tert-Butyl Alcohol ug/L 4000 106 60-140106 0 304000ND42504240 tert-Butyl Formate ug/L 3200 91 60-14090 2 303200ND29302880 tert-Butylbenzene ug/L 400 89 60-14094 5 30400ND355374 Tetrachloroethene ug/L 400 108 60-140111 3 30400ND431446 Toluene ug/L 400 109 60-140109 0 30400113547547 trans-1,2-Dichloroethene ug/L 400 111 60-140114 3 30400ND444458 trans-1,3-Dichloropropene ug/L 400 103 60-140107 4 30400ND412430 Trichloroethene ug/L 400 107 60-140111 4 30400ND428445 Trichlorofluoromethane ug/L 400 103 60-140105 3 30400ND410421 Vinyl chloride ug/L 400 95 60-140102 7 30400ND379407 Xylene (Total)ug/L 1200 103 60-140129 9 301200207033003620 1,2-Dichloroethane-d4 (S)%104 70-130101 4-Bromofluorobenzene (S)%104 70-130103 Toluene-d8 (S)%98 70-130100 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 31 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 611675 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92531085001, 92531085002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3219796 Associated Lab Samples:92531085001, 92531085002 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.31 0.50 04/06/21 10:430.31 1,1,1-Trichloroethane ug/L <0.33 0.50 04/06/21 10:430.33 1,1,2,2-Tetrachloroethane ug/L <0.22 0.50 04/06/21 10:430.22 1,1,2-Trichloroethane ug/L <0.32 0.50 04/06/21 10:430.32 1,1-Dichloroethane ug/L <0.37 0.50 04/06/21 10:430.37 1,1-Dichloroethene ug/L <0.35 0.50 04/06/21 10:430.35 1,1-Dichloropropene ug/L <0.43 0.50 04/06/21 10:430.43 1,2,3-Trichlorobenzene ug/L <0.81 2.0 04/06/21 10:430.81 1,2,3-Trichloropropane ug/L <0.26 0.50 04/06/21 10:430.26 1,2,4-Trichlorobenzene ug/L <0.64 2.0 04/06/21 10:430.64 1,2,4-Trimethylbenzene ug/L <0.50 0.50 04/06/21 10:430.50 1,2-Dibromo-3-chloropropane ug/L <0.34 1.0 04/06/21 10:430.34 1,2-Dibromoethane (EDB)ug/L <0.27 0.50 04/06/21 10:430.27 1,2-Dichlorobenzene ug/L <0.34 0.50 04/06/21 10:430.34 1,2-Dichloroethane ug/L <0.32 0.50 04/06/21 10:430.32 1,2-Dichloropropane ug/L <0.36 0.50 04/06/21 10:430.36 1,3,5-Trimethylbenzene ug/L <0.33 0.50 04/06/21 10:430.33 1,3-Dichlorobenzene ug/L <0.34 0.50 04/06/21 10:430.34 1,3-Dichloropropane ug/L <0.28 0.50 04/06/21 10:430.28 1,4-Dichlorobenzene ug/L <0.33 0.50 04/06/21 10:430.33 2,2-Dichloropropane ug/L <0.39 0.50 04/06/21 10:430.39 2-Chlorotoluene ug/L <0.32 0.50 04/06/21 10:430.32 4-Chlorotoluene ug/L <0.32 0.50 04/06/21 10:430.32 Benzene ug/L <0.34 0.50 04/06/21 10:430.34 Bromobenzene ug/L <0.29 0.50 04/06/21 10:430.29 Bromochloromethane ug/L <0.47 0.50 04/06/21 10:430.47 Bromodichloromethane ug/L <0.31 0.50 04/06/21 10:430.31 Bromoform ug/L <0.34 0.50 04/06/21 10:430.34 Bromomethane ug/L <1.7 5.0 04/06/21 10:431.7 Carbon tetrachloride ug/L <0.33 0.50 04/06/21 10:430.33 Chlorobenzene ug/L <0.28 0.50 04/06/21 10:430.28 Chloroethane ug/L <0.65 1.0 04/06/21 10:430.65 Chloroform ug/L <0.35 0.50 04/06/21 10:430.35 Chloromethane ug/L <0.54 1.0 04/06/21 10:430.54 cis-1,2-Dichloroethene ug/L <0.38 0.50 04/06/21 10:430.38 cis-1,3-Dichloropropene ug/L <0.36 0.50 04/06/21 10:430.36 Dibromochloromethane ug/L <0.36 0.50 04/06/21 10:430.36 Dibromomethane ug/L <0.39 0.50 04/06/21 10:430.39 Dichlorodifluoromethane ug/L <0.35 0.50 04/06/21 10:430.35 Diisopropyl ether ug/L <0.31 0.50 04/06/21 10:430.31 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 32 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3219796 Associated Lab Samples:92531085001, 92531085002 Matrix:Water AnalyzedMDL Ethanol ug/L <72.2 200 04/06/21 10:4372.2 Ethyl-tert-butyl ether ug/L <3.2 10.0 04/06/21 10:433.2 Ethylbenzene ug/L <0.30 0.50 04/06/21 10:430.30 Hexachloro-1,3-butadiene ug/L <1.5 2.0 04/06/21 10:431.5 Isopropylbenzene (Cumene)ug/L <0.33 0.50 04/06/21 10:430.33 m&p-Xylene ug/L <0.71 1.0 04/06/21 10:430.71 Methyl-tert-butyl ether ug/L <0.42 0.50 04/06/21 10:430.42 Methylene Chloride ug/L <2.0 2.0 04/06/21 10:432.0 n-Butylbenzene ug/L <0.49 0.50 04/06/21 10:430.49 n-Propylbenzene ug/L <0.34 0.50 04/06/21 10:430.34 Naphthalene ug/L <0.64 2.0 04/06/21 10:430.64 o-Xylene ug/L <0.34 0.50 04/06/21 10:430.34 sec-Butylbenzene ug/L <0.40 0.50 04/06/21 10:430.40 Styrene ug/L <0.29 0.50 04/06/21 10:430.29 tert-Amyl Alcohol ug/L <36.4 100 04/06/21 10:4336.4 tert-Amylmethyl ether ug/L <2.7 10.0 04/06/21 10:432.7 tert-Butyl Alcohol ug/L <26.8 50.0 04/06/21 10:4326.8 tert-Butyl Formate ug/L <29.4 50.0 04/06/21 10:4329.4 tert-Butylbenzene ug/L <0.32 0.50 04/06/21 10:430.32 Tetrachloroethene ug/L <0.29 0.50 04/06/21 10:430.29 Toluene ug/L <0.48 0.50 04/06/21 10:430.48 trans-1,2-Dichloroethene ug/L <0.40 0.50 04/06/21 10:430.40 trans-1,3-Dichloropropene ug/L <0.36 0.50 04/06/21 10:430.36 Trichloroethene ug/L <0.38 0.50 04/06/21 10:430.38 Trichlorofluoromethane ug/L <0.30 1.0 04/06/21 10:430.30 Vinyl chloride ug/L <0.39 1.0 04/06/21 10:430.39 Xylene (Total)ug/L <0.34 1.0 04/06/21 10:430.34 1,2-Dichloroethane-d4 (S)%99 70-130 04/06/21 10:43 4-Bromofluorobenzene (S)%98 70-130 04/06/21 10:43 Toluene-d8 (S)%104 70-130 04/06/21 10:43 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3219797LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 51.650 103 60-140 1,1,1-Trichloroethane ug/L 50.950 102 60-140 1,1,2,2-Tetrachloroethane ug/L 51.050 102 60-140 1,1,2-Trichloroethane ug/L 50.750 101 60-140 1,1-Dichloroethane ug/L 51.250 102 60-140 1,1-Dichloroethene ug/L 53.950 108 60-140 1,1-Dichloropropene ug/L 51.150 102 60-140 1,2,3-Trichlorobenzene ug/L 50.450 101 60-140 1,2,3-Trichloropropane ug/L 49.450 99 60-140 1,2,4-Trichlorobenzene ug/L 50.150 100 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 33 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3219797LABORATORY CONTROL SAMPLE: LCSSpike 1,2,4-Trimethylbenzene ug/L 50.850 102 60-140 1,2-Dibromo-3-chloropropane ug/L 51.750 103 60-140 1,2-Dibromoethane (EDB)ug/L 49.750 99 60-140 1,2-Dichlorobenzene ug/L 48.650 97 60-140 1,2-Dichloroethane ug/L 44.450 89 60-140 1,2-Dichloropropane ug/L 52.250 104 60-140 1,3,5-Trimethylbenzene ug/L 50.950 102 60-140 1,3-Dichlorobenzene ug/L 50.350 101 60-140 1,3-Dichloropropane ug/L 50.250 100 60-140 1,4-Dichlorobenzene ug/L 50.750 101 60-140 2,2-Dichloropropane ug/L 53.250 106 60-140 2-Chlorotoluene ug/L 50.650 101 60-140 4-Chlorotoluene ug/L 48.650 97 60-140 Benzene ug/L 50.950 102 60-140 Bromobenzene ug/L 48.950 98 60-140 Bromochloromethane ug/L 51.250 102 60-140 Bromodichloromethane ug/L 52.550 105 60-140 Bromoform ug/L 53.450 107 60-140 Bromomethane ug/L 47.350 95 60-140 Carbon tetrachloride ug/L 53.050 106 60-140 Chlorobenzene ug/L 50.850 102 60-140 Chloroethane ug/L 41.750 83 60-140 Chloroform ug/L 44.750 89 60-140 Chloromethane ug/L 48.950 98 60-140 cis-1,2-Dichloroethene ug/L 51.350 103 60-140 cis-1,3-Dichloropropene ug/L 53.950 108 60-140 Dibromochloromethane ug/L 53.550 107 60-140 Dibromomethane ug/L 50.550 101 60-140 Dichlorodifluoromethane ug/L 47.250 94 60-140 Diisopropyl ether ug/L 46.550 93 60-140 Ethanol ug/L 18402000 92 60-140 Ethyl-tert-butyl ether ug/L 96.0100 96 60-140 Ethylbenzene ug/L 50.850 102 60-140 Hexachloro-1,3-butadiene ug/L 51.150 102 60-140 Isopropylbenzene (Cumene)ug/L 54.250 108 60-140 m&p-Xylene ug/L 104100 104 60-140 Methyl-tert-butyl ether ug/L 46.350 93 60-140 Methylene Chloride ug/L 46.850 94 60-140 n-Butylbenzene ug/L 51.850 104 60-140 n-Propylbenzene ug/L 49.450 99 60-140 Naphthalene ug/L 49.450 99 60-140 o-Xylene ug/L 50.850 102 60-140 sec-Butylbenzene ug/L 50.150 100 60-140 Styrene ug/L 53.750 107 60-140 tert-Amyl Alcohol ug/L 9141000 91 60-140 tert-Amylmethyl ether ug/L 96.4100 96 60-140 tert-Butyl Alcohol ug/L 437500 87 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 34 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3219797LABORATORY CONTROL SAMPLE: LCSSpike tert-Butyl Formate ug/L 399400 100 60-140 tert-Butylbenzene ug/L 42.950 86 60-140 Tetrachloroethene ug/L 51.850 104 60-140 Toluene ug/L 50.350 101 60-140 trans-1,2-Dichloroethene ug/L 51.950 104 60-140 trans-1,3-Dichloropropene ug/L 53.550 107 60-140 Trichloroethene ug/L 50.550 101 60-140 Trichlorofluoromethane ug/L 43.250 86 60-140 Vinyl chloride ug/L 50.350 101 60-140 Xylene (Total)ug/L 155150 103 60-140 1,2-Dichloroethane-d4 (S)%93 70-130 4-Bromofluorobenzene (S)%105 70-130 Toluene-d8 (S)%102 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 3219798MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92531085002 3219799 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 4000 109 60-140110 1 304000<62.2 4350 4390 1,1,1-Trichloroethane ug/L 4000 110 60-140117 6 304000<66.4 4410 4670 1,1,2,2-Tetrachloroethane ug/L 4000 106 60-140105 1 304000<45.0 4230 4190 1,1,2-Trichloroethane ug/L 4000 109 60-140112 3 304000<65.0 4360 4490 1,1-Dichloroethane ug/L 4000 109 60-140112 3 304000<73.4 4380 4490 1,1-Dichloroethene ug/L 4000 119 60-140119 0 304000<69.6 4750 4760 1,1-Dichloropropene ug/L 4000 112 60-140115 3 304000<85.4 4480 4600 1,2,3-Trichlorobenzene ug/L 4000 98 60-140106 7 304000<161 3920 4220 1,2,3-Trichloropropane ug/L 4000 104 60-140101 2 304000<52.2 4150 4050 1,2,4-Trichlorobenzene ug/L 4000 98 60-140104 7 304000<128 3900 4180 1,2,4-Trimethylbenzene ug/L 4000 108 60-140110 1 304000273070407140 1,2-Dibromo-3- chloropropane ug/L 4000 100 60-140108 8 304000<68.0 3990 4320 1,2-Dibromoethane (EDB)ug/L 4000 110 60-140109 1 30400067350805020 1,2-Dichlorobenzene ug/L 4000 103 60-140103 0 304000<67.8 4140 4120 1,2-Dichloroethane ug/L 4000 96 60-14098 2 30400019540304110 1,2-Dichloropropane ug/L 4000 113 60-140112 1 304000<71.0 4510 4470 1,3,5-Trimethylbenzene ug/L 4000 127 60-140131 3 304000<66.4 5090 5240 1,3-Dichlorobenzene ug/L 4000 105 60-140108 3 304000<68.0 4200 4330 1,3-Dichloropropane ug/L 4000 109 60-140108 1 304000<56.8 4350 4310 1,4-Dichlorobenzene ug/L 4000 107 60-140108 1 304000<66.6 4280 4340 2,2-Dichloropropane ug/L 4000 103 60-140103 0 304000<77.6 4110 4130 2-Chlorotoluene ug/L 4000 113 60-140113 0 304000<64.2 4520 4500 4-Chlorotoluene ug/L 4000 104 60-140107 3 304000<64.8 4170 4290 Benzene ug/L 4000 116 60-140100 3 304000153001990019300 Bromobenzene ug/L 4000 106 60-140109 3 304000<58.0 4250 4360 Bromochloromethane ug/L 4000 108 60-140110 2 304000<93.6 4310 4390 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 35 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3219798MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92531085002 3219799 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromodichloromethane ug/L 4000 111 60-140111 0 304000<61.4 4430 4430 Bromoform ug/L 4000 110 60-140106 3 304000<68.2 4380 4250 Bromomethane ug/L 4000 122 60-140117 4 304000<332 4860 4690 Carbon tetrachloride ug/L 4000 116 60-140117 1 304000<66.6 4630 4670 Chlorobenzene ug/L 4000 111 60-140110 1 304000<56.8 4430 4380 Chloroethane ug/L 4000 124 60-140120 3 304000<130 4970 4800 Chloroform ug/L 4000 95 60-14097 1 304000<70.6 3810 3860 Chloromethane ug/L 4000 99 60-140102 3 304000<108 3970 4100 cis-1,2-Dichloroethene ug/L 4000 110 60-140114 3 304000<76.8 4420 4570 cis-1,3-Dichloropropene ug/L 4000 110 60-140110 0 304000<73.0 4410 4400 Dibromochloromethane ug/L 4000 115 60-140113 1 304000<71.8 4580 4530 Dibromomethane ug/L 4000 108 60-140106 2 304000<78.8 4300 4230 Dichlorodifluoromethane ug/L 4000 89 60-14092 3 304000<69.2 3560 3680 Diisopropyl ether ug/L 4000 98 60-140102 4 304000<61.6 3970 4110 Ethanol ug/L 160000 91 60-14098 7 30160000<14400 146000 156000 Ethyl-tert-butyl ether ug/L 8000 101 60-140104 3 308000<648 8080 8340 Ethylbenzene ug/L 4000 109 60-140109 0 304000222066006590 Hexachloro-1,3-butadiene ug/L 4000 101 60-140105 4 304000<306 4040 4180 Isopropylbenzene (Cumene)ug/L 4000 115 60-140115 1 30400010646904720 m&p-Xylene ug/L 8000 113 60-140110 1 308000101001910018800 Methyl-tert-butyl ether ug/L 4000 97 60-140100 3 304000<84.4 3920 4060 Methylene Chloride ug/L 4000 104 60-140105 1 304000<390 4150 4190 n-Butylbenzene ug/L 4000 105 60-140104 1 304000<98.0 4210 4170 n-Propylbenzene ug/L 4000 114 60-140116 2 304000<68.0 4550 4640 Naphthalene ug/L 4000 91 60-140101 8 30400099046505050 o-Xylene ug/L 4000 123 60-140109 6 304000493098709280 sec-Butylbenzene ug/L 4000 109 60-140111 2 304000<80.0 4350 4450 Styrene ug/L 4000 118 60-140113 4 30400075.4J 4790 4600 tert-Amyl Alcohol ug/L 80000 102 60-140109 6 3080000<7280 81800 86900 tert-Amylmethyl ether ug/L 8000 99 60-140101 2 308000<532 7880 8060 tert-Butyl Alcohol ug/L 40000 95 60-140103 8 3040000<5360 38000 41400 tert-Butyl Formate ug/L 32000 98 60-140103 5 3032000<5880 31400 33000 tert-Butylbenzene ug/L 4000 93 60-14095 3 304000<64.6 3700 3820 Tetrachloroethene ug/L 4000 109 60-140111 2 304000<58.4 4370 4440 Toluene ug/L 4000 109 60-140121 1 304000284003270033200 trans-1,2-Dichloroethene ug/L 4000 112 60-140115 3 304000<79.2 4470 4610 trans-1,3-Dichloropropene ug/L 4000 109 60-140115 5 304000<72.6 4360 4590 Trichloroethene ug/L 4000 112 60-140110 2 304000<76.6 4490 4410 Trichlorofluoromethane ug/L 4000 113 60-140112 0 304000<59.6 4500 4490 Vinyl chloride ug/L 4000 103 60-140104 2 304000<77.2 4110 4170 Xylene (Total)ug/L 12000 117 60-140109 3 3012000150002900028100 1,2-Dichloroethane-d4 (S)%98 70-130102 4-Bromofluorobenzene (S)%102 70-130101 Toluene-d8 (S)%100 70-130105 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 36 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 611676 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92531085005, 92531085007 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3219802 Associated Lab Samples:92531085005, 92531085007 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.31 0.50 04/06/21 20:380.31 1,1,1-Trichloroethane ug/L <0.33 0.50 04/06/21 20:380.33 1,1,2,2-Tetrachloroethane ug/L <0.22 0.50 04/06/21 20:380.22 1,1,2-Trichloroethane ug/L <0.32 0.50 04/06/21 20:380.32 1,1-Dichloroethane ug/L <0.37 0.50 04/06/21 20:380.37 1,1-Dichloroethene ug/L <0.35 0.50 04/06/21 20:380.35 1,1-Dichloropropene ug/L <0.43 0.50 04/06/21 20:380.43 1,2,3-Trichlorobenzene ug/L <0.81 2.0 04/06/21 20:380.81 1,2,3-Trichloropropane ug/L <0.26 0.50 04/06/21 20:380.26 1,2,4-Trichlorobenzene ug/L <0.64 2.0 04/06/21 20:380.64 1,2,4-Trimethylbenzene ug/L <0.50 0.50 04/06/21 20:380.50 1,2-Dibromo-3-chloropropane ug/L <0.34 1.0 04/06/21 20:380.34 1,2-Dibromoethane (EDB)ug/L <0.27 0.50 04/06/21 20:380.27 1,2-Dichlorobenzene ug/L <0.34 0.50 04/06/21 20:380.34 1,2-Dichloroethane ug/L <0.32 0.50 04/06/21 20:380.32 1,2-Dichloropropane ug/L <0.36 0.50 04/06/21 20:380.36 1,3,5-Trimethylbenzene ug/L <0.33 0.50 04/06/21 20:380.33 1,3-Dichlorobenzene ug/L <0.34 0.50 04/06/21 20:380.34 1,3-Dichloropropane ug/L <0.28 0.50 04/06/21 20:380.28 1,4-Dichlorobenzene ug/L <0.33 0.50 04/06/21 20:380.33 2,2-Dichloropropane ug/L <0.39 0.50 04/06/21 20:380.39 2-Chlorotoluene ug/L <0.32 0.50 04/06/21 20:380.32 4-Chlorotoluene ug/L <0.32 0.50 04/06/21 20:380.32 Benzene ug/L <0.34 0.50 04/06/21 20:380.34 Bromobenzene ug/L <0.29 0.50 04/06/21 20:380.29 Bromochloromethane ug/L <0.47 0.50 04/06/21 20:380.47 Bromodichloromethane ug/L <0.31 0.50 04/06/21 20:380.31 Bromoform ug/L <0.34 0.50 04/06/21 20:380.34 Bromomethane ug/L <1.7 5.0 04/06/21 20:381.7 Carbon tetrachloride ug/L <0.33 0.50 04/06/21 20:380.33 Chlorobenzene ug/L <0.28 0.50 04/06/21 20:380.28 Chloroethane ug/L <0.65 1.0 04/06/21 20:380.65 Chloroform ug/L <0.35 0.50 04/06/21 20:380.35 Chloromethane ug/L <0.54 1.0 04/06/21 20:380.54 cis-1,2-Dichloroethene ug/L <0.38 0.50 04/06/21 20:380.38 cis-1,3-Dichloropropene ug/L <0.36 0.50 04/06/21 20:380.36 Dibromochloromethane ug/L <0.36 0.50 04/06/21 20:380.36 Dibromomethane ug/L <0.39 0.50 04/06/21 20:380.39 Dichlorodifluoromethane ug/L <0.35 0.50 04/06/21 20:380.35 Diisopropyl ether ug/L <0.31 0.50 04/06/21 20:380.31 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 37 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3219802 Associated Lab Samples:92531085005, 92531085007 Matrix:Water AnalyzedMDL Ethanol ug/L <72.2 200 04/06/21 20:3872.2 Ethyl-tert-butyl ether ug/L <3.2 10.0 04/06/21 20:383.2 Ethylbenzene ug/L <0.30 0.50 04/06/21 20:380.30 Hexachloro-1,3-butadiene ug/L <1.5 2.0 04/06/21 20:381.5 Isopropylbenzene (Cumene)ug/L <0.33 0.50 04/06/21 20:380.33 m&p-Xylene ug/L <0.71 1.0 04/06/21 20:380.71 Methyl-tert-butyl ether ug/L <0.42 0.50 04/06/21 20:380.42 Methylene Chloride ug/L <2.0 2.0 04/06/21 20:382.0 n-Butylbenzene ug/L <0.49 0.50 04/06/21 20:380.49 n-Propylbenzene ug/L <0.34 0.50 04/06/21 20:380.34 Naphthalene ug/L <0.64 2.0 04/06/21 20:380.64 o-Xylene ug/L <0.34 0.50 04/06/21 20:380.34 sec-Butylbenzene ug/L <0.40 0.50 04/06/21 20:380.40 Styrene ug/L <0.29 0.50 04/06/21 20:380.29 tert-Amyl Alcohol ug/L <36.4 100 04/06/21 20:3836.4 tert-Amylmethyl ether ug/L <2.7 10.0 04/06/21 20:382.7 tert-Butyl Alcohol ug/L <26.8 50.0 04/06/21 20:3826.8 tert-Butyl Formate ug/L <29.4 50.0 04/06/21 20:3829.4 tert-Butylbenzene ug/L <0.32 0.50 04/06/21 20:380.32 Tetrachloroethene ug/L <0.29 0.50 04/06/21 20:380.29 Toluene ug/L <0.48 0.50 04/06/21 20:380.48 trans-1,2-Dichloroethene ug/L <0.40 0.50 04/06/21 20:380.40 trans-1,3-Dichloropropene ug/L <0.36 0.50 04/06/21 20:380.36 Trichloroethene ug/L <0.38 0.50 04/06/21 20:380.38 Trichlorofluoromethane ug/L <0.30 1.0 04/06/21 20:380.30 Vinyl chloride ug/L <0.39 1.0 04/06/21 20:380.39 Xylene (Total)ug/L <0.34 1.0 04/06/21 20:380.34 1,2-Dichloroethane-d4 (S)%96 70-130 04/06/21 20:38 4-Bromofluorobenzene (S)%97 70-130 04/06/21 20:38 Toluene-d8 (S)%107 70-130 04/06/21 20:38 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3219803LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 48.950 98 60-140 1,1,1-Trichloroethane ug/L 48.550 97 60-140 1,1,2,2-Tetrachloroethane ug/L 49.150 98 60-140 1,1,2-Trichloroethane ug/L 48.650 97 60-140 1,1-Dichloroethane ug/L 49.250 98 60-140 1,1-Dichloroethene ug/L 51.250 102 60-140 1,1-Dichloropropene ug/L 47.450 95 60-140 1,2,3-Trichlorobenzene ug/L 47.450 95 60-140 1,2,3-Trichloropropane ug/L 47.850 96 60-140 1,2,4-Trichlorobenzene ug/L 46.450 93 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 38 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3219803LABORATORY CONTROL SAMPLE: LCSSpike 1,2,4-Trimethylbenzene ug/L 46.950 94 60-140 1,2-Dibromo-3-chloropropane ug/L 49.950 100 60-140 1,2-Dibromoethane (EDB)ug/L 48.250 96 60-140 1,2-Dichlorobenzene ug/L 47.350 95 60-140 1,2-Dichloroethane ug/L 43.050 86 60-140 1,2-Dichloropropane ug/L 49.550 99 60-140 1,3,5-Trimethylbenzene ug/L 48.050 96 60-140 1,3-Dichlorobenzene ug/L 47.950 96 60-140 1,3-Dichloropropane ug/L 48.650 97 60-140 1,4-Dichlorobenzene ug/L 48.450 97 60-140 2,2-Dichloropropane ug/L 44.850 90 60-140 2-Chlorotoluene ug/L 48.150 96 60-140 4-Chlorotoluene ug/L 46.650 93 60-140 Benzene ug/L 49.050 98 60-140 Bromobenzene ug/L 47.150 94 60-140 Bromochloromethane ug/L 49.550 99 60-140 Bromodichloromethane ug/L 49.550 99 60-140 Bromoform ug/L 51.350 103 60-140 Bromomethane ug/L 48.350 97 60-140 Carbon tetrachloride ug/L 48.650 97 60-140 Chlorobenzene ug/L 47.950 96 60-140 Chloroethane ug/L 41.550 83 60-140 Chloroform ug/L 43.050 86 60-140 Chloromethane ug/L 47.150 94 60-140 cis-1,2-Dichloroethene ug/L 48.950 98 60-140 cis-1,3-Dichloropropene ug/L 48.450 97 60-140 Dibromochloromethane ug/L 52.350 105 60-140 Dibromomethane ug/L 47.550 95 60-140 Dichlorodifluoromethane ug/L 43.350 87 60-140 Diisopropyl ether ug/L 44.550 89 60-140 Ethanol ug/L 17902000 89 60-140 Ethyl-tert-butyl ether ug/L 93.4100 93 60-140 Ethylbenzene ug/L 47.450 95 60-140 Hexachloro-1,3-butadiene ug/L 44.550 89 60-140 Isopropylbenzene (Cumene)ug/L 50.450 101 60-140 m&p-Xylene ug/L 97.3100 97 60-140 Methyl-tert-butyl ether ug/L 44.850 90 60-140 Methylene Chloride ug/L 45.250 90 60-140 n-Butylbenzene ug/L 46.250 92 60-140 n-Propylbenzene ug/L 46.750 93 60-140 Naphthalene ug/L 48.050 96 60-140 o-Xylene ug/L 47.950 96 60-140 sec-Butylbenzene ug/L 47.150 94 60-140 Styrene ug/L 50.450 101 60-140 tert-Amyl Alcohol ug/L 8861000 89 60-140 tert-Amylmethyl ether ug/L 90.8100 91 60-140 tert-Butyl Alcohol ug/L 437500 87 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 39 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3219803LABORATORY CONTROL SAMPLE: LCSSpike tert-Butyl Formate ug/L 379400 95 60-140 tert-Butylbenzene ug/L 40.650 81 60-140 Tetrachloroethene ug/L 47.250 94 60-140 Toluene ug/L 47.450 95 60-140 trans-1,2-Dichloroethene ug/L 49.350 99 60-140 trans-1,3-Dichloropropene ug/L 49.350 99 60-140 Trichloroethene ug/L 47.850 96 60-140 Trichlorofluoromethane ug/L 41.850 84 60-140 Vinyl chloride ug/L 47.550 95 60-140 Xylene (Total)ug/L 145150 97 60-140 1,2-Dichloroethane-d4 (S)%91 70-130 4-Bromofluorobenzene (S)%103 70-130 Toluene-d8 (S)%101 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 3219804MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92531231003 3219805 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 96 60-140106 10 3020ND19.2 21.1 1,1,1-Trichloroethane ug/L 20 99 60-140107 7 3020ND19.9 21.4 1,1,2,2-Tetrachloroethane ug/L 20 96 60-140105 9 3020ND19.2 21.1 1,1,2-Trichloroethane ug/L 20 93 60-140104 11 3020ND18.6 20.8 1,1-Dichloroethane ug/L 20 101 60-140105 4 3020ND20.2 21.1 1,1-Dichloroethene ug/L 20 107 60-140112 4 3020ND21.5 22.3 1,1-Dichloropropene ug/L 20 101 60-140106 5 3020ND20.2 21.2 1,2,3-Trichlorobenzene ug/L 20 105 60-140109 4 3020ND21.1 21.8 1,2,3-Trichloropropane ug/L 20 92 60-140101 10 3020ND18.3 20.3 1,2,4-Trichlorobenzene ug/L 20 104 60-140107 3 3020ND20.8 21.5 1,2,4-Trimethylbenzene ug/L 20 99 60-140108 9 3020ND19.7 21.7 1,2-Dibromo-3- chloropropane ug/L 20 104 60-140116 11 3020ND20.8 23.3 1,2-Dibromoethane (EDB)ug/L 20 96 60-140104 8 3020ND19.1 20.8 1,2-Dichlorobenzene ug/L 20 93 60-140103 11 3020ND18.5 20.6 1,2-Dichloroethane ug/L 20 86 60-14093 8 3020ND17.3 18.6 1,2-Dichloropropane ug/L 20 98 60-140107 9 3020ND19.5 21.4 1,3,5-Trimethylbenzene ug/L 20 100 60-140110 10 3020ND19.9 22.0 1,3-Dichlorobenzene ug/L 20 94 60-140104 10 3020ND18.8 20.7 1,3-Dichloropropane ug/L 20 96 60-140106 9 3020ND19.3 21.1 1,4-Dichlorobenzene ug/L 20 95 60-140105 10 3020ND19.0 21.1 2,2-Dichloropropane ug/L 20 106 60-140111 5 3020ND21.1 22.2 2-Chlorotoluene ug/L 20 97 60-140109 11 3020ND19.5 21.8 4-Chlorotoluene ug/L 20 94 60-140103 9 3020ND18.8 20.5 Benzene ug/L 20 95 60-140105 10 3020ND19.1 21.0 Bromobenzene ug/L 20 95 60-140106 10 3020ND19.1 21.2 Bromochloromethane ug/L 20 96 60-140103 6 3020ND19.3 20.5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 40 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3219804MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92531231003 3219805 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromodichloromethane ug/L 20 96 60-140107 10 3020ND19.3 21.4 Bromoform ug/L 20 97 60-140104 7 3020ND19.4 20.9 Bromomethane ug/L 20 102 60-140108 6 3020ND20.4 21.7 Carbon tetrachloride ug/L 20 101 60-140109 8 3020ND20.1 21.9 Chlorobenzene ug/L 20 96 60-140105 9 3020ND19.3 21.0 Chloroethane ug/L 20 102 60-140106 4 3020ND20.3 21.2 Chloroform ug/L 20 87 60-14092 6 3020ND17.3 18.4 Chloromethane ug/L 20 96 60-14097 1 3020ND19.2 19.5 cis-1,2-Dichloroethene ug/L 20 101 60-140108 7 3020ND20.1 21.6 cis-1,3-Dichloropropene ug/L 20 98 60-140108 9 3020ND19.7 21.5 Dibromochloromethane ug/L 20 99 60-140110 10 3020ND19.9 22.0 Dibromomethane ug/L 20 94 60-140101 7 3020ND18.8 20.3 Dichlorodifluoromethane ug/L 20 68 60-14070 2 3020ND13.6 13.9 Diisopropyl ether ug/L 20 89 60-14096 8 3020ND17.8 19.3 Ethanol ug/L 800 93 60-14098 5 30800ND748787 Ethyl-tert-butyl ether ug/L 40 93 60-14099 7 3040ND37.1 39.7 Ethylbenzene ug/L 20 97 60-140105 8 3020ND19.4 20.9 Hexachloro-1,3-butadiene ug/L 20 112 60-140117 4 3020ND22.5 23.3 Isopropylbenzene (Cumene)ug/L 20 102 60-140110 7 3020ND20.5 22.1 m&p-Xylene ug/L 40 98 60-140107 9 3040ND39.3 42.9 Methyl-tert-butyl ether ug/L 20 89 60-14095 6 3020ND17.9 19.0 Methylene Chloride ug/L 20 94 60-140100 6 3020ND18.8 20.0 n-Butylbenzene ug/L 20 102 60-140111 8 3020ND20.4 22.1 n-Propylbenzene ug/L 20 98 60-140108 10 3020ND19.7 21.7 Naphthalene ug/L 20 101 60-140107 6 3020ND20.1 21.4 o-Xylene ug/L 20 96 60-140103 7 3020ND19.2 20.7 sec-Butylbenzene ug/L 20 100 60-140110 10 3020ND20.0 22.0 Styrene ug/L 20 95 60-140105 10 3020ND19.0 21.1 tert-Amyl Alcohol ug/L 400 87 60-14097 11 30400ND349389 tert-Amylmethyl ether ug/L 40 88 60-14097 9 3040ND35.2 38.7 tert-Butyl Alcohol ug/L 200 115 60-140130 12 30200ND230259 tert-Butyl Formate ug/L P51603260-14024 30160ND50.5 38.3J tert-Butylbenzene ug/L 20 86 60-14095 11 3020ND17.1 19.1 Tetrachloroethene ug/L 20 101 60-140106 5 3020ND20.2 21.2 Toluene ug/L 20 93 60-140110 16 30201.6 20.1 23.6 trans-1,2-Dichloroethene ug/L 20 103 60-140109 6 3020ND20.5 21.9 trans-1,3-Dichloropropene ug/L 20 98 60-140109 10 3020ND19.6 21.8 Trichloroethene ug/L 20 95 60-140104 9 3020ND19.1 20.9 Trichlorofluoromethane ug/L 20 92 60-14098 7 3020ND18.3 19.7 Vinyl chloride ug/L 20 91 60-14095 4 3020ND18.2 19.0 Xylene (Total)ug/L 60 97 60-140106 8 3060ND58.5 63.6 1,2-Dichloroethane-d4 (S)%102 70-130101 4-Bromofluorobenzene (S)%101 70-130100 Toluene-d8 (S)%99 70-130101 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 41 of 47 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92531085 WILLIAMS GROCERY Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 611652 EPA 504.1 EPA 504.1 GCS 504 EDB DBCP Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92531085007, 92531085008, 92531085009, 92531085010, 92531085011 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3219737 Associated Lab Samples:92531085007, 92531085008, 92531085009, 92531085010, 92531085011 Matrix:Water AnalyzedMDL 1,2-Dibromoethane (EDB)ug/L <0.013 0.020 04/06/21 16:230.013 1-Chloro-2-bromopropane (S)%91 70-130 04/06/21 16:23 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3219738LABORATORY CONTROL SAMPLE & LCSD: LCSSpike LCSD % Rec RPD Max RPD LCSD Result 3219739 1,2-Dibromoethane (EDB)ug/L 0.250.25 101 70-1301070.27 8 20 1-Chloro-2-bromopropane (S)%97 70-130100 Parameter Units MS Result % Rec Limits Qual% RecConc. 3219741MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92531055002 3219742 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,2-Dibromoethane (EDB)ug/L 0.25 104 65-135108 3 200.25ND 0.26 0.27 1-Chloro-2-bromopropane (S) %95 70-13098 Parameter Units Dup Result Max RPD QualifiersRPDResult 92531055001 3219740SAMPLE DUPLICATE: 1,2-Dibromoethane (EDB)ug/L <0.013 20ND 1-Chloro-2-bromopropane (S)%9792 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 42 of 47 #=QL# QUALIFIERS Pace Project No.: Project: 92531085 WILLIAMS GROCERY DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Analyte concentration exceeded the calibration range. The reported result is estimated.E Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 The EPA or method required sample preservation degrades this compound, therefore acceptable recoveries may not be achieved in sample matrix spikes.P5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 43 of 47 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92531085 WILLIAMS GROCERY Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92531085007 611652 611816WSW-1 EPA 504.1 EPA 504.1 92531085008 611652 611816WSW-2 EPA 504.1 EPA 504.1 92531085009 611652 611816WSW-6 EPA 504.1 EPA 504.1 92531085010 611652 611816WSW-7 EPA 504.1 EPA 504.1 92531085011 611652 611816FB-1 EPA 504.1 EPA 504.1 92531085001 611675MW-1 SM 6200B 92531085002 611675MW-3 SM 6200B 92531085003 611410MW-5 SM 6200B 92531085004 611410MW-12 SM 6200B 92531085005 611676AS-1 SM 6200B 92531085006 611410TRIP BLANK SM 6200B 92531085007 611676WSW-1 SM 6200B 92531085008 611410WSW-2 SM 6200B 92531085009 611410WSW-6 SM 6200B 92531085010 611410WSW-7 SM 6200B 92531085011 611410FB-1 SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 04/07/2021 01:54 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 44 of 47 Page 45 of 47 Page 46 of 47 Page 47 of 47 APPENDIX D HEALTH RISK EVALUATION (WSW-6) April 15, 2021 TO: Herb Berger NC UST Section RE: Health Risk Evaluation Incident # 15063 Randy Simmerson Well Sampling Results 1717 Hamptonville Road Yadkinville, NC During this sampling event, four contaminants were detected in the well water. The standards used to determine if the water is suitable for drinking and cooking are the United States Environmental Protection Agency’s Maximum Contaminant Levels (MCLs) or, if no MCLs exist, North Carolina Groundwater Standards (2L). If any contaminant concentrations exceed applicable standards for using the water for drinking and cooking, those contaminant concentrations are further analyzed to determine if the water is suitable for other household uses, such as showering, bathing, washing dishes, flushing toilets, and hand washing. The chart below compares the detected contaminant concentrations with the applicable standards: Sample ID Contaminant Concentration (µg/L) MCL (µg/L) 2L (µg/L) 92531085009 Bromodichloromethane 1.0 80* Chloroform 5.4 80* Dibromochloromethane 0.42 80* Toluene 2.5 1,000 µg/L – Stands for micrograms of contaminant per liter of water and is roughly equivalent to parts per billion. * As total trihalomethanes. RECOMMENDATION: None of the contaminants detected exceeded the applicable water standards. Therefore, no restrictions on the use of this water are recommended at this time. David Lilley, Environmental Toxicologist Division of Waste Management, NCDEQ